Summary Box: Rates on 30-year mortgages rise to 4.79 percent this week, off yearly lows
RATES : Rates on 30-year fixed mortgages ticked up from the lowest level of the year this week, rising to 4.79 percent from 4.78 percent last week.
STILL LOW: Rates remain near yearly lows as investors shift money into the safety of U.S. Treasury bonds due to fears over Europe's debt crisis. Mortgage rates tend to track the interest rates paid on long-term Treasury bonds.
OTHER RATES FALL: The average rate on a 15-year fixed-rate mortgage fell to 4.20 percent, the lowest level on record.
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