Year	Number
2004-01-01	115.3846
2005-01-01	123.0769
2006-01-01	123.0769
2007-01-01	88.4615
2008-01-01	96.1538
2009-01-01	107.6923
2010-01-01	107.6923
2011-01-01	119.2308
2012-01-01	123.0769
2013-01-01	157.6923
2014-01-01	150.0000
2015-01-01	153.8462
2016-01-01	150.0000
2017-01-01	150.0000