United Nations Population Division (UNPD): Difference between revisions

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== Life expectancy data ==
== Life expectancy data ==


=== Description of Data  ===
=== '''Description of Data ''' ===


Life expectancy and fertility rate data are available for&nbsp;5 year intervals (e.g. 1955-1960, 1960-1965) up to latest year<span style="background-color:#FFFF00;">[what is "latest year"? - what if the current year is not a multiple of 5?]</span>. Forecasts of data are available for future years <span style="background-color:#FFFF00;">[all forecasts are of future years. To what year do these forecasts go?]</span>&nbsp;For the purpose of Ifs<span style="background-color:#FFFF00;">[always capitalize IFs - this is the name of the place we work]</span>&nbsp;a simple average needs to be computed in order to arrive at a value for every 5 year interval&nbsp;(e.g. Average for 1955-60 value and 1960-65 value will be recorded under the year 1960 for<span style="background-color:#FFFF00;">Ifs.</span>) The life expectancy data is computed by UNPD on the basis of the estimated levels of infant and child mortality and after taking into consideration special circumstances in respective nations<span style="background-color:#FFFF00;">[does this mean death rates by type for each age-cohort? How exactly is life expectancy calculated? This is a forecast and so we must make sure it matches with our methodology of forecasting life expectancy]</span>. For example, the demographic impact of AIDS has been factored in when computing the life expectancy of Rwanda. Life expectancy is driven by income levels (GDP per capita at PPP) , Government spending on health and education (GDS), Civilian damage from wars, population and mortality<span style="background-color:#FFFF00;">[where? in their model? in our model? in real life? and why are&nbsp;"government", and "civilian" capitalized?].&nbsp;</span>
Life expectancy and fertility rate data are available for&nbsp;5 year intervals (e.g. 1955-1960, 1960-1965) up to latest year (2015). Since the datasets are estimates, the data is available for five year intervals up to the year 2100. IFs calculates the annual value using an interpolation function.&nbsp;For the purpose of IFs&nbsp;,a simple average needs to be computed in order to arrive at a value for every 5 year interval&nbsp;(e.g. Average for 1955-60 value and 1960-65 value will be recorded under the year 1960 for<span style="background-color: rgb(255, 255, 0);">&nbsp;IFS</span>). On the basis of these&nbsp;5 year intervals, IFs computes the annual values for life expectancy and TFR using an interpolation function. &nbsp;


Since the data in<span style="background-color:#FFFF00;">Ifs</span> is calculated on the basis of assigned averages between two time periods, it must be noted that data won’t be available for the period succeeding the latest year&nbsp;(e.g. for the 2015 update, latest data is available for the 2010-2015 period, but no data is available for 2015-2020 period, thus the average value cannot be calculated.) For the latest period, when computing the average value, the forecasted value for the future period needs to be used. (E.g. <span style="background-color:#FFFF00;">[don't capitalize "e.g." and it is not a new sentence.]</span>&nbsp;for 2015, compute the average using 2010-2015 value and the 2015-2020 forecasted value.) While using forecasts, please note that three varieties of forecasted values are available, one with a low variant, one with a medium variant and one with a high variant. The medium variant needs to be used when computing the average, as this is likely to be the closest to the actual value. &nbsp;
'''Methodology used by UNPD'''
 
The life expectancy at birth is defined by UNPD as the number of years a newborn infant could expect to live if prevailing patterns of age-specific mortality rates at the time of birth stay the same throughout the infant’s life.&nbsp;The life expectancy data is computed by UNPD on the basis of the estimated levels of infant and child mortality and after taking into consideration special circumstances in respective nations.&nbsp;For example, the mortality impact of AIDS has been factored in when computing the life expectancy of Rwanda. &nbsp;
 
'''Life expectancy in IFs'''
 
Life expectancy is driven by income levels (GDP per capita at PPP) , government spending on health and education (GDS), civilian damage from wars, population and mortality. Life expectancy shares an especially strong relationship with income as evidenced by an r square value of&nbsp; 0.63. The chart below shows the relationship between GDP per capita and life expectancy across nations in 2014.&nbsp;&nbsp;
 
Since the data in IF<span style="background-color:#FFFF00;">s</span> is calculated on the basis of assigned averages between two time periods, it must be noted that data won’t be available for the period succeeding the latest year&nbsp;(e.g. for the 2015 update, latest data is available for the 2010-2015 period, but no data is available for 2015-2020 period, thus the average value cannot be calculated.) For the latest period, when computing the average value, the forecasted value for the future period needs to be used. (e.g.&nbsp;for 2015, compute the average using 2010-2015 value and the 2015-2020 forecasted value.) While using forecasts, &nbsp;note that three varieties of forecasted values are available, one with a low variant, one with a medium variant and one with a high variant. The medium variant needs to be used when computing the average, as this is likely to be the closest to the actual value. &nbsp;


=== Data Source ===
=== Data Source ===

Revision as of 21:41, 11 October 2016

What is the UNPD? What kind of data do they release? How often are the data updated? When are the data released?

Series pulled from UNPD

Table Source Last IFs Update UsedInPreprocessorFileName
SeriesInfMortMedUNPD http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2014/1/23 POP
SeriesLifExpectFemale http://esa.un.org/wpp/Excel-Data/mortality.htm 2015/02/21 POP
SeriesLifExpectMale http://esa.un.org/wpp/Excel-Data/mortality.htm 2015/02/21 POP
SeriesTFRMedUNPD http://esa.un.org/wpp/Excel-Data/fertility.htm 2016/02/23 POP
SeriesPopulation UNPD 2015 (DSR added Taiwan from WEO) 2015/09/18 INFRA
SeriesForecastandHistInfMortMedUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2014/1/23  
SeriesForecastandHistPopulationBothSexesConstUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastandHistPopulationBothSexesHighUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastandHistPopulationBothSexesLowUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastandHistPopulationBothSexesMedUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastCDR0MigrationUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastCDRConstFertUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastCDRConstMortalityUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastCDRHighUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastCDRlowUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastCDRMedUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastCDRNoChangeUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastCDRreplacementUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastDependencyRatio0MigrationUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastDependencyRatioConstMortUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastDependencyRatioNoChangeUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastDependencyRatioOld0MigrationUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioOldConstFertUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioOldConstMortalityUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioOldHighUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioOldLowUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioOldMedUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioOldNoChangeUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioOldReplacementUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/26  
SeriesForecastDependencyRatioYoungConstFertUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastDependencyRatioYoungHighUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastDependencyRatioYoungLowUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastDependencyRatioYoungMedUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastDependencyRatioYoungReplacementUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/10/08  
SeriesForecastFertility0MigrationUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertility0MigrationUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastFertilityConstMortalityUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertilityConstMortalityUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastfertilityConstUNPD http://esa.un.org/wpp/Excel-Data/fertility.htm 2013/05  
SeriesForecastFertilityConstUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertilityConstUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastfertilityHighUNPD http://esa.un.org/wpp/Excel-Data/fertility.htm 2013/05  
SeriesForecastFertilityHighUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertilityHighUNPD2015ANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastfertilityLowUNPD http://esa.un.org/wpp/Excel-Data/fertility.htm 2013/05  
SeriesForecastFertilityLowUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertilityLowUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastfertilityMedUNPD http://esa.un.org/wpp/Excel-Data/fertility.htm 2013/05  
SeriesForecastFertilityMedUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertilityMedUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastFertilityNoChangeUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertilityNoChangeUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastFertilityReplacementUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastFertilityReplacementUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/22  
SeriesForecastInfantMortalityMedUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/28  
SeriesForecastLifeExpMedBothSexesUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastLifeExpMedBothSexesUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/24  
SeriesForecastLifeExpMedFemaleUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastLifeExpMedFemaleUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/24  
SeriesForecastLifeExpMedMaleUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastLifeExpMedMaleUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 2015/09/24  
SeriesForecastLifExpectFemaleMedUNPD http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/05  
SeriesForecastLifExpectFemaleUNPD2010Rev http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/01  
SeriesForecastLifExpectMaleMedUNPD http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/05  
SeriesForecastLifExpectMaleUNPD2010Rev http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/01  
SeriesForecastLifExpectMedUNPD http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/05  
SeriesForecastLifExpectUNPD2010Rev http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/01  
SeriesForecastNetMigrantsUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 9/28/2015 2:58:39 PM  
SeriesForecastNetMigrationMedUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/10/14  
SeriesForecastNetMigrationRateMedUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/10/14  
SeriesForecastNetMigrationRateUNPD2015RevANN http://esa.un.org/unpd/wpp/DVD/ 11/5/2015 6:53:45 PM  
SeriesForecastPopBothSexes0MigrationUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexes0MigrationUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopBothSexesConstMortalityUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexesConstMortalityUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopBothSexesConstUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexesConstUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopBothSexesHighUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexesHighUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopBothSexesLowUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexesLowUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopBothSexesMedUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexesMedUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopBothSexesNoChangeUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexesNoChangeUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopBothSexesReplacementUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopBothSexesReplacementUNPD2015Rev http://esa.un.org/unpd/wpp/DVD/ 2015/08/13  
SeriesForecastPopFemale0MigrationUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopFemaleConstMortalityUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopFemaleConstUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopFemaleHighUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopFemaleLowUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopFemaleMedUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopFemaleNoChangeUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopFemaleReplacementUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMale0MigrationUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMaleConstMortalityUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMaleConstUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMaleHighUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMaleLowUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMaleMedUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMaleNoChangeUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopMaleReplacementUNPD2012Rev http://esa.un.org/unpd/wpp/Excel-Data/population.htm 2013/7/1  
SeriesForecastPopulationBothSexesConstUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastPopulationBothSexesHighUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastPopulationBothSexesLowUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastPopulationBothSexesMedUNPD2010Rev http://esa.un.org/wpp/Excel-Data/population.htm 2013/6/1  
SeriesForecastYouthDependencyRatio0MigrationUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesForecastYouthDependencyRatioConstFertUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesForecastYouthDependencyRatioConstMortalityUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesForecastYouthDependencyRatioHighUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesForecastYouthDependencyRatioLowUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesForecastYouthDependencyRatioMedUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesForecastYouthDependencyRatioNoChangeUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesForecastYouthDependencyRatioReplacementUNPD2015Rev UNPD WPP 2015 http://esa.un.org/unpd/wpp/DVD/ 2015/08/28  
SeriesLifExpect http://esa.un.org/wpp/Excel-Data/mortality.htm 2015/02/21  
SeriesLifExpectFemaleMedUNPD http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/05  
SeriesLifExpectMaleMedUNPD http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/05  
SeriesLifExpectMedUNPD http://esa.un.org/wpp/Excel-Data/mortality.htm 2013/05  
SeriesPopulation15PlusMill UNPD 2016/01/07  
SeriesPopulation15to29Mill UNPD 2016/01/05  
SeriesPopulation15to64% UNPD 2016/01/07  
SeriesPopulation15to64Mill UNPD 2016/01/05  
SeriesPopulation65Plus UNPD 2016/01/07  
SeriesPopulation65Plus% UNPD 2016/01/07  
SeriesPopulation65PlusMill UNPD 2016/01/07  
SeriesPopulationElderlyDependence% UNPD 2016/01/07  
SeriesPopulationUnder15Mill UNPD 2016/01/05  
SeriesPopulationUnder5Mill UNPD 2016/01/11  
SeriesPopulationUNFilled UNPD 2010 Rev Filled with WDI and Ifs 2011/11/11  
SeriesPopYouthBulgeBy15 UNPD 2016/01/07  
SeriesPopYouthBulgeBy30 UNPD 2016/01/07  
SeriesPopYouthBulgeByTotal UNPD 2016/01/07  
SeriesPopYouthDependency% UNPD 2016/01/07  

Instructions on pulling UNPD data

Life expectancy data

Description of Data 

Life expectancy and fertility rate data are available for 5 year intervals (e.g. 1955-1960, 1960-1965) up to latest year (2015). Since the datasets are estimates, the data is available for five year intervals up to the year 2100. IFs calculates the annual value using an interpolation function. For the purpose of IFs ,a simple average needs to be computed in order to arrive at a value for every 5 year interval (e.g. Average for 1955-60 value and 1960-65 value will be recorded under the year 1960 for IFS). On the basis of these 5 year intervals, IFs computes the annual values for life expectancy and TFR using an interpolation function.  

Methodology used by UNPD

The life expectancy at birth is defined by UNPD as the number of years a newborn infant could expect to live if prevailing patterns of age-specific mortality rates at the time of birth stay the same throughout the infant’s life. The life expectancy data is computed by UNPD on the basis of the estimated levels of infant and child mortality and after taking into consideration special circumstances in respective nations. For example, the mortality impact of AIDS has been factored in when computing the life expectancy of Rwanda.  

Life expectancy in IFs

Life expectancy is driven by income levels (GDP per capita at PPP) , government spending on health and education (GDS), civilian damage from wars, population and mortality. Life expectancy shares an especially strong relationship with income as evidenced by an r square value of  0.63. The chart below shows the relationship between GDP per capita and life expectancy across nations in 2014.  

Since the data in IFs is calculated on the basis of assigned averages between two time periods, it must be noted that data won’t be available for the period succeeding the latest year (e.g. for the 2015 update, latest data is available for the 2010-2015 period, but no data is available for 2015-2020 period, thus the average value cannot be calculated.) For the latest period, when computing the average value, the forecasted value for the future period needs to be used. (e.g. for 2015, compute the average using 2010-2015 value and the 2015-2020 forecasted value.) While using forecasts,  note that three varieties of forecasted values are available, one with a low variant, one with a medium variant and one with a high variant. The medium variant needs to be used when computing the average, as this is likely to be the closest to the actual value.  

Data Source

https://esa.un.org/unpd/wpp/Download/Standard/Population/

Series to be updated in IFs

  1. Series LifExpect
  2. Series LifExpectFemale
  3. Series LifExpectMale

Total Fertility Rate (TFR) data

Description of Data

Life Expectancy and Fertility [capitalized?] rate data are available for every 5 years (E.g. 1955-1960, 1960-1965) upto latest year [same comment as above]. Forecasts of data are available for future years [same comment as above]. For the purpose of Ifs a simple average needs to be computed in order to arrive at a value for every 5 year interval. (E.g. Average for 1955-60 value and 1960-65 value will be recorded under the year 1960 for Ifs.) Ifs uses an interpolated value for every year in between the intervals.  This data is compiled from fertility surveys conducted across nations. Total fertility rate is driven by average education years and the income levels (GDP per capita at PPP). The fertility [what data?] rate in turn affects the total births and the crude birth rate in a region[in the model? or?]

Since the data in Ifs is calculated on the basis of assigned averages between two time periods, it must be noted that data won’t be available for the period succeeding the latest year. (E.g. for the 2015 update, latest data is available for the 2010-2015 period, but no data is available for 2015-2020 period, thus the average value cannot be calculated.) For the latest period, when computing the average value, the forecasted value for the future period needs to be used. (E.g. for 2015, compute the average using 2010-2015 value and the 2015-2020 forecasted value.) While using forecasts, please note that three varieties of forecasted values are available, one with a low variant, one with a medium variant and one with a high variant. The medium variant needs to be used when computing the average, as this is likely to be the closest to the actual value.  

Data Source

https://esa.un.org/unpd/wpp/Download/Standard/Population/

Series to be updated in IFs

SeriesTFRMedUNPD

Country list

IFs country list

 Last updated by Kanishka Narayan on [please include date]

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