Ginnie Mae accounted for 40.4 percent of new structured finance deals backed by agency single-family MBS during the first quarter of 2015, making it the top issuer in the sector despite a 3.9 percent drop in volume from the previous quarter. Freddie Mac was the only agency-backed real estate mortgage investment conduit issuer to increase production from the fourth quarter. Credit Suisse saw...[Includes one data table]