Year	Number
2004-01-01	592598
2005-01-01	543163
2006-01-01	557753
2007-01-01	679331
2008-01-01	723059
2009-01-01	891522
2010-01-01	905199
2011-01-01	1038981
2012-01-01	1151290
2013-01-01	1237848
2014-01-01	1187832
2015-01-01	1253069
2016-01-01	1126178