Year	Number
2004-01-01	176988
2005-01-01	195713
2006-01-01	268754
2007-01-01	324385
2008-01-01	338236
2009-01-01	331440
2010-01-01	342800
2011-01-01	364019
2012-01-01	364199
2013-01-01	400368
2014-01-01	426589
2015-01-01	246790
2016-01-01	298498