My friend actually had me tell him every time my RAM cleared over the course of a week as a little study.  When it was done, he gave me the statistics (these are the best I can remember):
-Average: 9 per day
-Highest Day: Saturday (13)
-Lowest Day: Monday (6)
-Average Time of Clear: 9:30AM-11:00AM (Math class )
Interesting note: 12:00AM-12:30AM averaged 2 per day

Does he code or play some unstable games like Mario? 9 per day seems like a bit much otherwise!

DJ, it's how many times SirCmpwn's RAM cleared. 

His friend was keeping track for him.