Year Number per 100,000 adults 2004-01-01 1.8099700000000000 2005-01-01 2.2379900000000000 2006-01-01 3.3805099999999997 2007-01-01 3.8797400000000000 2008-01-01 4.6700200000000000 2009-01-01 5.2380400000000000 2010-01-01 7.4467700000000000 2011-01-01 8.4091300000000010 2012-01-01 9.0679199999999990 2013-01-01 10.1750000000000000 2014-01-01 10.2033000000000000 2015-01-01 10.4388000000000000