Without looking it up, to how many digits after the decimal point can you recite for the value of Pi?

I readily admit to being a bit of a geek. I know it to 18 digits after the decimal. I know a guy in school who knew it to 100 digits. He worked at it.
How many places can you recite without looking?
Pi day is coming up on 3/14/15. You might as well learn an extra digit to flex your gray matter. Consider it exercise.

Can this be used as a brain function test?