Year	Number
2004-01-01	110525
2005-01-01	104995
2006-01-01	153615
2007-01-01	170200
2008-01-01	173681
2009-01-01	494799
2010-01-01	533998
2011-01-01	572639
2012-01-01	844068
2013-01-01	998642
2014-01-01	1187244
2015-01-01	1279099
2016-01-01	1236768