Year	Number
2004-01-01	186
2005-01-01	194
2006-01-01	217
2007-01-01	222
2008-01-01	225
2009-01-01	205
2010-01-01	322
2011-01-01	316
2012-01-01	368
2013-01-01	322
2014-01-01	313
2015-01-01	302
2016-01-01	300