Where are the bills?

I recently performed a study to determine where most of the U.S. currency is located. Using a large sample (n=0), I determined where the majority of the given currency type is currently located:

$1 bills = in snack machines

$2 bills = in frames

$5 bills = in coffee shop cash registers

$10 bills = in pants pockets in your closet, waiting to be found next time you put them on

$20 bills = actually in wallets, it's what the ATM gives out

$50 bills = in the wallets of grandfathers

$100 bills = in banks

pennies = in your car's change drawer

nickels = in your car seat cushions

dimes = further down in your car seat cushions

quarters = gumball machines

half dollars = coin collections

dollar coin = NJ Transit ticket machines

I swear, every time I find a bill in pair of pants, it's a 10!