Dealing with the question of where the money comes from once it ends up in my wallet is not the very first thing I’d do. Usually. But during my stay in the US of A, I came across with the depicted 1-Dollar-Bill. The Currency Tracking Study is obviously researching on where the money goes and comes from. Here is the statistic for the Dollar bill that I got at Fresh Planet, Santa Cruz (I crossed out the serial number to ensure that nobody messes up the tracking):