After peaking in the second quarter of 2007, sales of interest-only mortgages to Fannie Mae and Freddie Mac continued to decline in the most recent period, according to the Inside Mortgage Finance MBS Database. Lenders sent $19.1 billion worth of the mortgages to the government-sponsored enterprises in the second quarter of 2008, a 65.1 percent drop compared with... [Includes two charts and one graph]