A slowdown in the mortgage industry hit the government-sponsored enterprises hard last month, although Fannie Mae appears to have borne the brunt of reduced activity in the mortgage market. According to information contained in its latest monthly report, total business at Fannie Mae fell by 16 percent in February – dropping from $48.1 billion in January to $40.2 billion. Freddie, on the other hand, saw its total volume edge up 2 percent from $35.9 billion…