Nonprime lenders flexed their muscle last year, accounting for nearly one out of every three new loans, a new Inside Mortgage Finance analysis and ranking reveals. How red-hot was the nonprime market in 2005? Subprime lending volume set a new record, with lenders churning out an estimated $625 billion in new loans. Meanwhile, the Alt A market saw volume rise by more than 90 percent, on a year-to-year basis, with a record $390 billion… [One data table included]