Total delinquency rates and foreclosure start rates decreased for all loan types on a quarter-over-quarter basis, except FHA loans, according to the Mortgage Bankers Association’s National Delinquency Survey for the fourth quarter of 2011. All delinquency and foreclosure measures for FHA loans were up over the previous quarter because the agency’s book of business experienced rapid growth, and purchase loans originated in 2008 and 2009 are now only entering the peaks of a normal delinquency, the MBA explained. On a seasonally adjusted basis, the delinquency rate for FHA loans increased 27 basis points to 12.36 percent and the foreclosure inventory rate rose by ... [one data chart]