Year	Number
2004-01-01	9
2005-01-01	9
2006-01-01	10
2007-01-01	11
2008-01-01	406
2009-01-01	406
2010-01-01	421
2011-01-01	583
2012-01-01	624
2013-01-01	662
2014-01-01	667
2015-01-01	710
2016-01-01	809
2017-01-01	785