Average U.S. long-term mortgage rates fell for a third straight week amid anxiety over developments in the U.S. economy that lifted bond prices.

Average U.S. long-term mortgage rates fell for a third straight week amid anxiety over developments in the U.S. economy that lifted bond prices.

Here's a look at rates for fixed- and adjustable-rate mortgages this week and over the past year:

Current avg.Last week52-week high52-week low30-year fixed3.91 percent3.98 percent4.23 percent3.59 percent15-year fixed3.13 percent3.17 percent3.37 percent2.92 percent5-year adjustable2.95 percent2.95 percent3.08 percent2.82 percent1-year adjustable2.54 percent2.52 percent2.59 percent2.35 percent