Year	Number
2004-01-01	1364107
2005-01-01	1718814
2006-01-01	2230511
2007-01-01	2508896
2008-01-01	3049535
2009-01-01	3098113
2010-01-01	3230360
2011-01-01	3470380
2012-01-01	3363972
2013-01-01	3666938
2014-01-01	3925559
2015-01-01	3927969
2016-01-01	3995211