N U M N W P γ = N U M N W P γ t − 1 ∗ ( 1 + N u m N w G R γ t ) {\displaystyle NUMNWP_{\gamma }=NUMNWP_{\gamma }^{t-1}*(1+NumNwGR_{\gamma }^{t})}
where
N u m N w G R γ t = N U M N W P G R γ t − 1 ∗ ( n w p l m − N U M N W P γ t − 1 n w p l m − N U M N W P γ t − 1 ) 2 ∗ n u m n w p g r m {\displaystyle NumNwGR_{\gamma }^{t}=NUMNWPGR_{\gamma }^{t-1}*({\frac {nwplm-NUMNWP_{\gamma }^{t-1}}{nwplm-NUMNWP_{\gamma }^{t-1}}})^{2}*numnwpgrm}
n w p l m = n u m n w p l i m ∗ P O P γ {\displaystyle nwplm=numnwplim*POP_{\gamma }}
