USDT: Annualized return is 11.46% for amounts under 1000 USDT, and 3.48% for amounts over 1000 USDT. There is no minimum investment requirement for all users. USDC: Annualized return is 7% for amounts under 10000 USDT (non-VIPs), and 2.95% for amounts over 10000 USDT. VIPs receive a maximum of 8.5%. USDU: Annualized return is 5% for amounts under 300,000 USDT. USD1: 3.33% for investment, and 4.3% for earning WLIFI (a virtual currency), with no upper limit. I don't know about the others because I don't have them.