The average rate on a 30-year fixed mortgage hit another new low this week, dropping to 3.53% from 3.56% last week, according to Freddie Mac’s survey of what lenders are offering to well-qualified borrowers.

With the Federal Reserve aggressively pushing rates down and few signs of inflation on the horizon, it was 12th time in 13 weeks that a new record was set, Freddie Mac economist Frank Nothaft said in the report Thursday morning.

Freddie Mac said the 15-year fixed loan, which has been a popular part of the recent boom in refinancings, averaged 2.83%, down from 2.86% and also a new record.

The typical start rate on a five-year hybrid loan, which has a fixed rate until it turns adjustable in the sixth year, was at a record low level as well: 2.69%, down from 2.74%.

Borrowers would have paid 0.7% of the loan amount in upfront lender fees to obtain the 30-year fixed loan and 0.6% for the 15-year fixed and five-year hybrid, Freddie Mac said.

Freddie Mac asks lenders each week about the terms they are offering to solid borrowers for loans of up to $417,000. Industry pros say well-qualified borrowers can often do slightly better by shopping around, and it’s possible to “buy down” rates by paying additional discount points to lenders.

The survey excludes additional third-party closing costs such as appraisals and title insurance.