Year	Number
2006-01-01	205
2007-01-01	210
2008-01-01	204
2009-01-01	206
2010-01-01	209
2011-01-01	210
2012-01-01	214
2013-01-01	218
2014-01-01	215
2015-01-01	213
2016-01-01	205
2017-01-01	197