Year	Number
2004-01-01	0.3309
2009-01-01	0.3464
2010-01-01	0.6204
2011-01-01	0.6307
2012-01-01	0.3981
2013-01-01	0.3257
2014-01-01	0.2999
2015-01-01	1.2046