Breakdown of mortgage rates for past 52 weeks

Average rates on fixed mortgages rose this week, the first increase in seven weeks, according to the latest data released Thursday by Freddie Mac.

The 30-year rose to 3.71 percent from 3.67 percent a week ago, ending the rate’s six-week decline. This time last year, the average was 4.50 percent.

The average rate on the 15-year mortgage, a popular refinancing option, rose to 2.98 percent. That's up from 2.94 percent last week, also a record low.

Here's a look at rates for fixed- and adjustable-rate mortgages over the past 52 weeks:

Current Avg. Last week 52-week High 52-week low

30-year Fixed 3.71 3.67 4.60 3.67
15-year Fixed 2.98 2.94 3.75 2.94
5-year adjustable 2.80 2.84 3.41 2.78
1-year adjustable 2.78 2.79 3.02 2.70

All values in Percentage points

Source: Freddie MacPrimary MortgageMarket Survey