Year Number per 100,000 adults 2004-01-01 1.1952200000000002 2005-01-01 1.1775000000000000 2006-01-01 1.1570600000000000 2007-01-01 1.3135900000000000 2008-01-01 1.7662600000000000 2009-01-01 1.8695800000000000 2010-01-01 1.9851200000000000 2011-01-01 2.0510800000000000 2012-01-01 2.1898800000000000 2013-01-01 2.4409500000000000 2014-01-01 2.4349700000000000 2015-01-01 2.4585000000000000