Year Number per 1,000 adults 2004-01-01 229.65000000000000 2005-01-01 274.24000000000000 2006-01-01 357.01500000000000 2007-01-01 217.87400000000002 2008-01-01 218.33500000000000 2009-01-01 228.41800000000000 2010-01-01 287.80900000000000 2011-01-01 356.91700000000000 2012-01-01 285.63500000000000 2013-01-01 312.78700000000003 2014-01-01 321.02000000000000 2015-01-01 341.96400000000000