Year	Number
2004-01-01	97
2005-01-01	97
2006-01-01	98
2007-01-01	101
2008-01-01	106
2009-01-01	109
2010-01-01	114
2011-01-01	111
2012-01-01	110
2013-01-01	111
2014-01-01	107
2015-01-01	106
2016-01-01	107
2017-01-01	108