Year	Number
2004-01-01	32338
2005-01-01	41163
2006-01-01	45278
2007-01-01	42403
2008-01-01	48520
2009-01-01	58636
2010-01-01	66715
2011-01-01	71211
2012-01-01	88230
2013-01-01	106352
2014-01-01	108568