Year	Number
2004-01-01	85.0040
2005-01-01	87.4264
2006-01-01	88.4928
2007-01-01	84.6157
2008-01-01	84.7297
2009-01-01	84.0977
2010-01-01	85.1889
2011-01-01	86.6869
2012-01-01	85.1001
2013-01-01	78.9831
2014-01-01	74.2865
2015-01-01	74.3696
2016-01-01	73.0280