First published by Money Metals here: https://www.moneymetals.com/news/2018/08/22/currency-in-circulation-reaches-new-high-001600

With all the talk about Central banks going “Cashless,” someone needs to tell the Federal Reserve. Why? Because the Federal Reserve just placed another large order for newly printed 2018 Dollars. Interestingly, the U.S. Treasury will print the largest number of $100 bills since it came out with the updated anti-counterfeit $100 bill in 2013. Not only is the Federal Reserve ordering more bills to replace worn-out bills that will be taken out of circulation, but it will also add a percentage for the increased public demand.