Year	Number
2004-01-01	83.0353
2005-01-01	82.8576
2006-01-01	82.2805
2007-01-01	82.7183
2008-01-01	83.4234
2009-01-01	83.8599
2010-01-01	83.9799
2011-01-01	85.5127
2012-01-01	85.8077
2013-01-01	86.5492
2014-01-01	92.5911
2015-01-01	91.1022
2016-01-01	91.7813