美国至6月16日20年期国债竞拍-得标利率配置百分比 17.96%，前值41.02%。

Core Insights - The auction yield for the 20-year U.S. Treasury bond as of June 16 was 17.96%, a significant decrease from the previous value of 41.02% [1] Group 1 - The current yield indicates a shift in investor sentiment towards long-term government securities [1] - The drop in yield percentage suggests increased demand for the 20-year Treasury bonds [1]