That is a good question to ask.  The answer is no, you do not have to claim any interest or growth in the RRSP account.  The only time monies in an RRSP account are included as income and taxed are when they are withdrawn, and only the amount that is withdrawn.  So if you had invested $50,000 of your own money into rrsps, and they grew to $100,000, and withdrew $10,000 in one tax year, then you would only report the $10,000 as part of your income for that year. 

http://www.cra-arc.gc.ca/tx/ndvdls/tpcs/rrsp-reer/wthdrwls/menu-eng.html