Year Number per 1,000 adults 2006-01-01 150.94100000000000 2007-01-01 162.68000000000000 2008-01-01 176.31300000000000 2009-01-01 154.63800000000000 2010-01-01 188.96200000000002 2011-01-01 208.99500000000000 2012-01-01 217.17000000000000 2013-01-01 218.21500000000000 2014-01-01 236.70100000000000 2015-01-01 262.96800000000000