Year	Number
2004-01-01	200443
2005-01-01	267221
2006-01-01	274232
2007-01-01	247403
2008-01-01	375728
2009-01-01	476685
2010-01-01	572972
2011-01-01	660081
2012-01-01	735472
2013-01-01	840658
2014-01-01	947330
2015-01-01	1013686
2016-01-01	1134380