Today I clicked the grid for the 100,000th time dating back more than 4 years.
I checked my stats and in that time I have won 655 times. By winning I mean anything from extra chances to Cash.
Doing the math, I have won a prize every 152.67 clicks. Right on cue, today I won a .10 cent prize. The most I ever won at one time was $5.00 a couple years ago.