Year	Number
2004-01-01	90
2005-01-01	90
2006-01-01	93
2007-01-01	103
2008-01-01	105
2009-01-01	107
2010-01-01	103
2011-01-01	99
2012-01-01	98
2013-01-01	97
2014-01-01	99
2015-01-01	102
2016-01-01	103
2017-01-01	100