The mortgage origination boom of early 2001, which is on track to carry the market to a new record for annual production, continued to ratchet higher in April. Fannie Mae and Freddie Mac reported record new business volumes last month, as the two government-sponsored enterprises combined for $94.61 billion in mortgage purchases and securitization. Fannie Mae accounted for 56.6 percent of the market, or $53.51 billion in volume.