cig: Capital-investment Generation
Variable
Global
Capital-investment Generation []
cig = p * cim * clip ( cign , cign1 , swt4 ,time)

cig in the updating graph: ( how to read )
In nodes
cign : capital-investment generation normal (capital units/person/year)
cign1 : capital-investment generation normal no. 1 (capital units/person/year)
cim : capital-investment multiplier
p : population
swt4 : switch time no. 4 for cign (years)
Out nodes
ci : capital investment