As of June 30, 2012, the $100 bill comprised 77% of all US currency in circulation. Federal Reserve data from 2017 showed that the number of $100 bills exceeded the number of $1 bills. However, a 2018 research paper by the Federal Reserve Bank of Chicago estimated that 80 percent of $100 bills were in other countries. Possible reasons included economic instability that affected other currencies, and use of the bills for criminal activities.
As of June 30, 2012, the $100 bill comprised 77% of all US currency in circulation. Federal Reserve data from 2017 showed that the number of $100 bills exceeded the number of $1 bills. However, a 2018 research paper by the Federal Reserve Bank of Chicago estimated that 80 percent of $100 bills were in other countries. Possible reasons included economic instability that affected other currencies, and use of the bills for criminal activities.
https://en.wikipedia.org/wiki/United_States_one-hundred-doll...