Year	Number
2004-01-01	670175
2005-01-01	765465
2006-01-01	898828
2007-01-01	1040575
2008-01-01	1350452
2009-01-01	1570596
2010-01-01	1760963
2011-01-01	1963073
2012-01-01	2188554
2013-01-01	2296579
2014-01-01	2403154
2015-01-01	2497781
2016-01-01	2808236
2017-01-01	3059207