International Telecommunications Union (ITU)
International Telecommunications Union (ITU): World Telecommunication Indicators Database (12th edition 2008)
The World Telecommunication Indicators Database is one of the various data sources that have been used in IFs system for analyzing the size of the Information Communications Technology (ICT) sector in economies. The World Telecommunication Indicators Database, launched by ITU, contains time series data for the years 1960, 1965, 1970 and annually from 1975-2007 for around 80 sets of telecommunication statistics and is categorized into telephone network size and dimension, mobile services, quality of service, traffic, staff, tariffs, revenue and investment. Selected demographic, macro-economic, broadcasting and information technology statistics are also included. The database encompasses data for over 200 economies. It can be purchased either in CD-ROM or in printed version. ITU claims that the database is updated and revised approximately every three months. Detailed information about World Telecommunication Indicators is available at http://www.itu.int/ITU-D/ict/publications/world/world.html