Year	Number
2008-01-01	12.9438
2009-01-01	3.7827
2010-01-01	8.1355
2011-01-01	13.0875
2012-01-01	8.1520
2013-01-01	8.2774
2014-01-01	2.6944
2015-01-01	3.4375
2016-01-01	3.5436
2017-01-01	5.1735