Year Number per 1,000 adults 2004-01-01 379.16100000000000 2005-01-01 417.46400000000000 2006-01-01 430.39599999999996 2007-01-01 440.12300000000005 2008-01-01 467.54600000000000 2009-01-01 475.88800000000003 2010-01-01 532.22000000000000 2011-01-01 614.79900000000000 2012-01-01 640.26699999999990 2013-01-01 621.03000000000000 2014-01-01 615.26600000000000 2015-01-01 582.57800000000000 2016-01-01 573.63900000000000