Mortgage brokers were the primary source of new loans for subprime lenders in the first quarter of 2006, a new Inside B&C Lending analysis reveals. During the first three months of this year, brokers accounted for a whopping 61 percent of subprime originations – the highest level ever for that channel. In 2005, brokers accounted for 59.3 percent of subprime business. Overall, brokers have grown their market share by almost 20 percent since 2002,…