Year	Number
2006-01-01	6.1794
2007-01-01	10.4593
2008-01-01	14.6997
2009-01-01	11.1109
2010-01-01	12.4141
2011-01-01	11.1701
2012-01-01	11.4996
2013-01-01	12.1429