Year	Number
2004-01-01	350965
2005-01-01	417576
2006-01-01	462987
2007-01-01	539564
2008-01-01	585085
2009-01-01	612424
2010-01-01	662255
2011-01-01	742423
2012-01-01	756596
2013-01-01	822000
2014-01-01	892174
2015-01-01	933874
2016-01-01	957281
2017-01-01	1007533