Gatot Adriansyah | Istock | Getty ImagesThe share of federal education debt going to graduate students is at its highest point in history, a new report by the U.S. Department of Education finds. Alarmingly, as graduate school borrowing increases, wages for those with an advanced degree haven't risen nearly as much. "A closer look at borrowing trends and the outcomes of graduate programs … suggest cause for concern," department economists wrote. In 2006, the Education Department introduced the Grad PLUS loan program, which lets graduate students borrow as much as it costs to attend their program. On average, graduate students with debt in 2016 borrowed about $66,000 in total to finance their advanced degree, up from roughly $53,000 in 2000.

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Persons: Gatot, haven't Organizations: Istock, U.S . Department of Education, Education Department, Grad PLUS