Year	Number
2005-01-01	24716
2006-01-01	25011
2007-01-01	25535
2008-01-01	26870
2009-01-01	27175
2010-01-01	26863
2011-01-01	28124
2012-01-01	30506
2013-01-01	31288
2014-01-01	33049
2015-01-01	32950
2016-01-01	32863
2017-01-01	31357