Year Number per 1,000 adults 2011-01-01 578.4680000000001 2012-01-01 682.5080000000000 2013-01-01 658.8600000000000 2014-01-01 706.4860000000001 2015-01-01 730.9550000000000 2016-01-01 747.2810000000001