LOW RATES: Average U.S. rates on fixed mortgages were little changed this week, hovering near historic lows. Cheap mortgages have helped spur a recovery in the housing market.

THE NUMBERS: The average rate on the 30-year fixed mortgage edged up to 3.52 percent from 3.51 percent last week. That's near the 3.31 percent rate reached in November, the lowest on records dating to 1971. The average on the 15-year loan held at 2.76 percent. The record low is 2.63 percent.

HOUSING BOOST: The lowest mortgage rates in decades have boosted home sales and helped the market rebound. More people are buying homes, which has helped push up prices. The low rates also have encouraged more people to refinance.