Year	Number
2004-01-01	5.8729
2005-01-01	6.2006
2006-01-01	5.8194
2007-01-01	4.3089
2008-01-01	7.6392
2009-01-01	9.1058
2010-01-01	10.2018
2011-01-01	9.2631
2012-01-01	8.7116
2013-01-01	8.5523
2014-01-01	10.4820