The biggest source of Fannie Mae and Freddie Mac business during the first five months of 2014 came from loans with high credit scores and loan-to-value ratios that don’t require mortgage insurance, according to a new Inside Mortgage Trends analysis. Some 34.0 percent of mortgages securitized by the two government-sponsored enterprises through May of this year had credit scores of 740 or higher and LTV ratios ranging from 61 percent to 80 percent ... [Includes one data chart]