Year Number per 100,000 adults 2004-01-01 0.6642420000000000 2005-01-01 0.6444930000000000 2006-01-01 0.6237970000000000 2007-01-01 1.3786000000000000 2008-01-01 1.6661900000000000 2009-01-01 1.6932700000000000 2010-01-01 2.0322600000000000 2011-01-01 2.4812400000000000 2012-01-01 2.6490700000000000 2013-01-01 3.2461100000000000 2014-01-01 3.4920000000000000 2015-01-01 3.6507699999999996