Year	Number
2009-01-01	0.6421
2010-01-01	0.6838
2011-01-01	0.7074
2012-01-01	0.8912
2013-01-01	1.3580
2014-01-01	1.7311
2015-01-01	1.4531
2016-01-01	1.4490