Year	Number
2004-01-01	10.7101
2005-01-01	10.7097
2006-01-01	11.7502
2007-01-01	12.4286
2008-01-01	12.5986
2009-01-01	12.6644
2010-01-01	12.7054
2011-01-01	12.7491
2012-01-01	12.5571
2013-01-01	12.5682
2014-01-01	13.0411
2015-01-01	13.0276
2016-01-01	14.6976