New originations of both refinance loans and purchase mortgages fell sharply from the fourth quarter, with the biggest slump in the refi market, according to a new Inside Mortgage Finance ranking and analysis. An estimated $104 billion of refinance loans were originated in the first quarter, down 45.6 percent from the end of 2013. Compared to a year ago, refi production was down 76.2 percent. Refinance originations hit a cyclical high at the end of 2012 and early 2013, averaging nearly $440 billion per quarter, and it’s been going down steadily since then. With interest rates dropping in recent weeks, some mortgage observers say...[Includes one data chart]