Since data collection began in 1987, the highest two-year default rate recorded was 22.4 percent in 1990. In 2012, the U.S. Department of Education released detailed federal student loan default rates including, for the first time, three-year default rates. For-profit institutions had the highest average three-year default rates at 22.7 percent, and public institutions rates were 11 percent and private non-profit institutions at 7.5 percent. More than 3.6 million borrowers from over 5,900 schools entered repayment during 2008–2009, and approximately 489,000 of them defaulted. For-profit colleges account for 10 percent of enrolled students but 44 percent of student loan defaults.