Year	Number
2004-01-01	6
2005-01-01	59
2006-01-01	61
2007-01-01	62
2008-01-01	70
2009-01-01	76
2010-01-01	91
2011-01-01	95
2012-01-01	90
2013-01-01	87
2014-01-01	75
2015-01-01	90
2016-01-01	93