Year	Number
2007-01-01	0.0604250205377852
2008-01-01	0.0415784221746275
2009-01-01	0.0435244893818749
2010-01-01	0.0367469187614153
2011-01-01	0.0409222828639513
2012-01-01	0.2295903168661390
2013-01-01	0.2634228832246370
2014-01-01	0.5663165298980010