Year	Number
2004-01-01	111784
2005-01-01	172083
2006-01-01	269171
2007-01-01	414004
2008-01-01	357541
2009-01-01	298582
2010-01-01	230737
2011-01-01	257694
2012-01-01	283395
2013-01-01	287358
2014-01-01	324576
2015-01-01	361022
2016-01-01	331422
2017-01-01	383082