Year	Number
2004-01-01	59
2005-01-01	68
2006-01-01	87
2007-01-01	102
2008-01-01	103
2009-01-01	127
2010-01-01	133
2011-01-01	140
2012-01-01	161
2013-01-01	167
2014-01-01	187
2015-01-01	190
2016-01-01	203