Some 53.7 percent of newly originated mortgages delivered into agency mortgage-backed securities programs last year were generated through lenders’ retail production operations, according to a new Inside Mortgage Trends analysis. Correspondents accounted for the next largest share, 33.4 percent, of loans sold to Fannie Mae, Freddie Mac and Ginnie Mae. The data exclude mortgages that were over six months old when they were securitized ... [Includes two data charts]