Year Number 2004-01-01 550302 2005-01-01 644003 2006-01-01 902300 2007-01-01 1018055 2008-01-01 1097695 2009-01-01 1159348 2010-01-01 1263486 2011-01-01 1417434 2012-01-01 1593059 2013-01-01 1699506 2014-01-01 1804139 2015-01-01 1883891 2016-01-01 1962881