Year Number per 1,000 adults 2004-01-01 330.76900000000000 2005-01-01 301.79000000000000 2006-01-01 309.95700000000000 2007-01-01 317.48400000000004 2008-01-01 325.89599999999996 2009-01-01 257.02800000000000 2010-01-01 270.55600000000000 2011-01-01 285.16100000000000 2012-01-01 300.17300000000000 2013-01-01 331.76700000000000