Year	Number
2007-01-01	8.3036
2008-01-01	12.2358
2009-01-01	11.6842
2010-01-01	11.3073
2011-01-01	10.4915
2012-01-01	8.8810
2013-01-01	8.9031
2014-01-01	8.2294
2015-01-01	7.5451
2016-01-01	6.6911