Year	Number
2009-01-01	1.3239
2010-01-01	1.9784
2011-01-01	2.0337
2012-01-01	2.2376
2013-01-01	2.6378
2014-01-01	2.7586
2015-01-01	2.9625
2016-01-01	2.9776