Year	Number
2008-01-01	0.1217
2009-01-01	0.1880
2010-01-01	0.2362
2011-01-01	0.4081
2012-01-01	0.5890
2013-01-01	0.6643
2014-01-01	0.7911
2015-01-01	0.9945
2016-01-01	1.2211