Infer on stata

Hi there!

I have a population size in a country only in 2005

And I have net migration for all year around that date

Hence I would like to generate those missing data with the accumulation of the net flows

In other words:

year:.....................2004.........2005....... ......2006................2007
Net Flows.................2................5.......... ......10.................5
Population:..........missing........100..........m issing..........missing
New variable:..........95...........100............... .110...............115


Is there anyway I can do this on Stata?

Thank you very much!

Best Regards,

Andy