Ginnie Mae servicing volume was up modest 1.5 percent in the fourth quarter of 2012 and 9.1 percent higher from the previous year, with some eye-popping increases reported by several servicers. The top servicers of Ginnie Mae mortgage-backed securities reported $1.31 trillion in government-backed mortgage debt outstanding in the fourth quarter, up from $1.29 trillion from the previous quarter. Wells Fargo led the pack with $407.2 billion after posting gains on a quarterly and year-over-year basis while second-place Bank of America recorded a total of ... [1 chart]