First off, were not here to do your homework..
second:
When posting a question, especially if its home work, you need to show that you have attempted it in some way. Either by showing some code that you have written or where your thoughts on the matter have stopped or got stuck.
Third off , its not hard, psuedo code, im sure you can port this
population = what you want
yearat = The year it stars off
for 0 to yeartogoto - (yearat +1)
'I added the + 1 becuase otherwise it would calculate it for year 2003
'Alternatively, you could just move the next statement after the print statement
population = population *1.05
PRINT "your popluation is "; population
next
'Please note im intentionally not using fully compatible qb code so you still have some work to do
'And to get the current population you use the variable you are looping with + year at
And finally, instead of wriing a WHOLE NEW TOPIC, you can reply right?
Please, try it yourself first, THAN ask question.