Mortgage interest rates dropped near record lows during the week ended March 19 according to information released by Freddie Mac Thursday morning. The mortgage data is based on results from Freddie's Weekly Mortgage Market Survey and showed that the 30-year fixed-rate mortgage (FRM) averaged 4.98 percent, near the all-time low of 4.96 percent reached on January 15 2009. Last week the 30-year rate was 5.03 percent. Fees and points both weeks averaged 0.7 point. The 15-year FRM averaged 4.61 percent...