Year	Number
2004-01-01	47428
2005-01-01	56561
2006-01-01	92729
2007-01-01	109621
2008-01-01	177576
2009-01-01	192994
2010-01-01	251475
2011-01-01	312753
2012-01-01	395556
2013-01-01	436943
2014-01-01	519962
2015-01-01	258597
2016-01-01	450094
2017-01-01	759578