Year Number per 1,000 adults 2011-01-01 791.9500000000000 2012-01-01 845.5830000000001 2013-01-01 838.2230000000001 2014-01-01 824.8720000000000 2015-01-01 823.0030000000000 2016-01-01 822.9080000000000