Year	Number
2004-01-01	112
2005-01-01	123
2006-01-01	140
2007-01-01	166
2008-01-01	201
2009-01-01	232
2010-01-01	260
2011-01-01	203
2012-01-01	218
2013-01-01	217
2014-01-01	265
2015-01-01	218
2016-01-01	243