Year	Number
2004-01-01	83641
2005-01-01	90720
2006-01-01	102878
2007-01-01	119382
2008-01-01	129996
2009-01-01	144631
2010-01-01	167297
2011-01-01	194670
2012-01-01	226621
2013-01-01	386573
2014-01-01	443344
2015-01-01	443578
2016-01-01	461736