Year	Number
2004-01-01	7.3123
2005-01-01	7.3123
2006-01-01	7.3123
2007-01-01	7.5099
2008-01-01	7.5099
2009-01-01	7.8063
2010-01-01	8.0040
2011-01-01	8.0040
2012-01-01	7.6087