The delinquency rate of single-family mortgage loans fell to 7.09 percent of all loans outstanding on a seasonally adjusted basis at the end of the fourth quarter in 2012, the lowest level since 2008, according to the latest Mortgage Bankers Association’s national delinquency survey. The performance of FHA loans, on the other hand, was “mixed,” it said.Loan delinquencies decreased 31 basis points from the prior quarter, and were down 49 basis points from a year ago due to significant improvements in mortgage performance nationwide and in almost every state, the trade group said.“The 30-day delinquency rate dropped by ...