Printed each year - $1>$20>$100>$5>$10>$50>$2
Most found worldwide - $1/$100, depending. Lots of countries use the US dollar as their official currency. Others have adopted it officially, and more have it alongside other currency(ies). And those bills stick around a long time.
That’s two supplementary questions: How much of what is printed due to high demand, and how much of what is printed due to fast deterioration. It seems the 100 is in demand the most, but the smaller denominations would depreciate fastest.
I think it was Rolling Stone in the 90’s that reported that something like 80% of $100 bills tested in Florida had cocaine residue. During the height of the cocaine epidemic, snorting coke through a tightly rolled $100 bill was a “cool” thing to do…
How are there so many $2 bills in circulation? According to the chart there’s not even twice the number of $10 bills as there are $2 bills, and yet I’ve never come across a $2 “in the wild.” Are they popular in other countries?
It doesn’t need to be that every bill has been used itself - the drugs come off the bill when it’s rubbed against surfaces that sort and count it, and this passes drugs on to the bills that come after it.
“In circulation” just means they’ve been issued and not redeemed. It includes $2 bills in collections, bank vaults, etc. They’re used so infrequently that they rarely wear out, so they stay in circulation for a long time.