Year	Number
2005-01-01	570430
2006-01-01	580739
2007-01-01	702463
2008-01-01	764493
2009-01-01	1050213
2010-01-01	1129945
2011-01-01	1330913
2012-01-01	1443015
2013-01-01	1555547
2014-01-01	1334590
2015-01-01	1525881
2016-01-01	1463244