Year Number per 1,000 adults 2004-01-01 343.84300000000000 2005-01-01 359.62500000000000 2006-01-01 370.19000000000000 2007-01-01 367.95700000000000 2008-01-01 428.19900000000000 2009-01-01 458.85800000000000 2010-01-01 449.49100000000000 2011-01-01 452.53200000000000 2012-01-01 486.42000000000000 2013-01-01 425.72800000000000 2014-01-01 457.67900000000003 2015-01-01 477.98500000000000 2016-01-01 452.53900000000000