Year Number per 1,000 adults 2004-01-01 206.77700000000002 2005-01-01 236.93099999999998 2006-01-01 270.84400000000000 2007-01-01 299.52200000000000 2008-01-01 325.01000000000000 2009-01-01 345.51700000000000 2010-01-01 332.57000000000000 2011-01-01 330.55800000000005 2012-01-01 325.89000000000000 2013-01-01 299.48900000000003 2014-01-01 215.08599999999998 2015-01-01 261.94100000000000