Year	Number
2004-01-01	36185
2005-01-01	43051
2006-01-01	49552
2007-01-01	60814
2008-01-01	65811
2009-01-01	71509
2010-01-01	79013
2011-01-01	92176
2012-01-01	100502
2013-01-01	113085
2014-01-01	129285
2015-01-01	143496
2016-01-01	150759