> U.S. hospitals going back to 2001 and were able to estimate self-harm rates for the entire country. They found that the rate for boys held steady at roughly 200 per hundred thousand boys in the age range of fifteen to nineteen. The rate for girls in that age range was much higher, but had also been relatively steady from 2001 to 2009, at around 420 per hundred thousand girls. Beginning in 2010, however, the girls’ rate began to rise steadily, reaching 630 per hundred thousand in 2015. The rate for younger girls (ages ten to fourteen) rose even more quickly, nearly tripling from roughly 110 per hundred thousand in 2009 to 318 per hundred thousand in 2015. (The corresponding rate for boys in that age range was around 40 throughout the period studied.) The years since 2010 have been very hard on girls.