Year	Number
2004-01-01	0.9744
2005-01-01	0.9784
2006-01-01	0.9382
2007-01-01	0.9382
2008-01-01	0.9341
2009-01-01	0.9341
2010-01-01	0.9301
2011-01-01	0.9341
2012-01-01	0.9784