Year	Number
2007-01-01	93.17031685
2008-01-01	93.24485931
2009-01-01	93.53868013
2010-01-01	93.18856011
2011-01-01	93.29172313
2012-01-01	92.01381186
2013-01-01	90.53934830
2014-01-01	90.51750200