Year	Number
2004-01-01	1019187
2005-01-01	1038977
2006-01-01	1084584
2007-01-01	1178335
2008-01-01	1231069
2009-01-01	1244177
2010-01-01	1252973
2011-01-01	1306793
2012-01-01	1348240
2013-01-01	1388638
2014-01-01	1492175
2015-01-01	1563595
2016-01-01	1584979
2017-01-01	1661980