Year	Number
2004-01-01	185
2005-01-01	171
2006-01-01	158
2007-01-01	152
2008-01-01	133
2009-01-01	122
2010-01-01	116
2011-01-01	106
2012-01-01	100
2013-01-01	94
2014-01-01	89
2015-01-01	76
2016-01-01	62