Year Number per 100,000 adults 2004-01-01 1.5570300000000000 2005-01-01 1.5892100000000000 2006-01-01 1.7147200000000000 2007-01-01 1.8287600000000000 2008-01-01 1.8674800000000000 2009-01-01 2.0305000000000000 2010-01-01 2.2644900000000003 2011-01-01 2.4786900000000003 2012-01-01 2.6997800000000000 2013-01-01 3.2079200000000000 2014-01-01 3.1389700000000000 2015-01-01 3.1766799999999997