Year	Number
2006-01-01	410025
2007-01-01	446987
2008-01-01	462446
2009-01-01	508630
2010-01-01	488914
2011-01-01	557900
2012-01-01	611761
2013-01-01	548542
2014-01-01	596037
2015-01-01	750406
2016-01-01	828209