Year	Number
2008-01-01	0.6378
2009-01-01	0.8975
2010-01-01	1.1233
2011-01-01	1.3536
2012-01-01	1.5365
2013-01-01	1.7227
2014-01-01	1.8176
2015-01-01	1.9993