US Treasury Bond Yields Back Behind Weak 20-Year Debt Auction

17 Feb- Yields on longer-term U.S. Treasury bonds fell Wednesday from the top of a year, as selling pressure declined despite a weak 20- year bond auction and data pointing to a strengthening of the economy. *Demand was weak for the U.S. Treasury auction of 27 billion in 20- year bonds that had a high yield of 1.920%, analysts say. *Regarding the increase in yields, Bill…