Year	Number
2004-01-01	540116
2005-01-01	637411
2006-01-01	830991
2007-01-01	1111600
2008-01-01	1263237
2009-01-01	1258623
2010-01-01	1065780
2011-01-01	1199188
2012-01-01	1250718
2013-01-01	1230102
2014-01-01	1083502
2015-01-01	1005946
2016-01-01	1004137
2017-01-01	1112445