cid: Capital-investment Discard
Variable
Global
Capital-investment Discard []
cid = ci * clip ( cidn , cidn1 , swt5 ,time)

cid in the updating graph: ( how to read )
In nodes
cidn : capital-investment discard normal (fraction/year)
cidn1 : capital-investment discard normal no. 1 (fraction/year)
swt5 : switch time no. 5 for cidn (years)
ci : capital investment
Out nodes
ci : capital investment