Year	Number
2004-01-01	178
2005-01-01	174
2006-01-01	168
2007-01-01	156
2008-01-01	148
2009-01-01	140
2010-01-01	138
2011-01-01	132
2012-01-01	128
2013-01-01	122
2014-01-01	110
2015-01-01	87
2016-01-01	59