Year Number per 1,000 adults 2004-01-01 395.9070000000000 2005-01-01 459.2830000000000 2006-01-01 542.9780000000001 2007-01-01 581.8880000000000 2008-01-01 662.2730000000000 2009-01-01 722.2280000000001 2010-01-01 706.7630000000000 2011-01-01 712.8240000000000 2012-01-01 697.2980000000000 2013-01-01 739.0900000000000 2014-01-01 812.9500000000000 2015-01-01 927.7980000000000 2016-01-01 992.5870000000000