Year Number per 100,000 adults 2007-01-01 3.9386600000000000 2008-01-01 4.1182099999999995 2009-01-01 4.1352699999999990 2010-01-01 4.1454200000000000 2011-01-01 4.1045000000000000 2012-01-01 4.5897500000000000 2013-01-01 6.5333600000000000 2014-01-01 6.7774399999999995 2015-01-01 7.1216899999999990 2016-01-01 8.3070899999999990