Ginnie Mae production has been down so long it doesn’t take much of a rebound to look like up. Mortgage-securities issuance under the venerable program surged up 27.9 percent from the first to the second quarter of this year, the biggest increase among all the MBS programs. That brought Ginnie Mae MBS volume to $40.13 billion for the first half of 2006, down 6.6 percent from last year. … [One data table included]