I had about 300 games by level 16 (yes yes, I suck)
I didn't even realize booting was a big deal until level 16, and by that time, I was already at 30%
I'm lucky to have brought it down so low.
So let us see... 300 games with a 30% boot rate equates to 90 boots.
Now played 1463 games with 214 boots. That means after learning that boots were bad, you have played another 1150 games and been booted 124 times, or 10.7%.
Yup, really learned your lesson...