The median annual earnings among recipients of a Bachelor's degree or higher (age 25 and over) with full-time work was $62,300 in 2013, or $28,300 more than their counterparts with only a high school diploma. College graduates also faced lower rates of unemployment than those with only a high school diploma, at 4 percent versus 8 percent. Although workers with a bachelor's degree are far more likely to have greater earnings, a fraction have earnings levels more common among those with only a high school diploma. Nearly two-thirds of high-school graduates enrolled in college in 2013, a six percent increase from 1995. The growth in enrollment has contributed to a rapid rise in the student loan debt balance, which stood at $1.1 trillion in early 2014 compared to $250 billion in 2003