Year	Number
2004-01-01	16.0000
2005-01-01	16.0000
2006-01-01	16.0000
2007-01-01	16.0000
2008-01-01	16.0000
2009-01-01	16.0000
2010-01-01	16.0000
2011-01-01	16.0000
2012-01-01	16.0000
2013-01-01	16.0000
2014-01-01	14.6667
2015-01-01	14.6667
2016-01-01	13.3333
2017-01-01	12.0000