@Kip Ashlynn four primary sources cover most of it. fred series DTWEXBGS for the fed's trade weighted broad dollar index, which is the honest one since DXY is over half euro. imf cofer for the dollar's share of official reserves, quarterly. swift's rmb tracker for actual payment shares by currency, monthly. bis triennial survey for fx turnover, where the dollar still sits on one side of about 88 percent of trades. all four are free downloads and none of them need a podcast.