Year	Number
2005-01-01	3.9726
2006-01-01	3.9400
2007-01-01	4.0123
2008-01-01	3.8642
2009-01-01	4.2229
2010-01-01	4.6449
2011-01-01	5.2158
2012-01-01	8.8712
2013-01-01	9.2337