Year Number 2004-01-01 1249 2005-01-01 1206 2006-01-01 1144 2007-01-01 1093 2008-01-01 1061 2009-01-01 1011 2010-01-01 959 2011-01-01 925 2012-01-01 901 2013-01-01 863 2014-01-01 786 2015-01-01 681 2016-01-01 575