Year	Number
2007-01-01	30.9499
2008-01-01	30.7785
2009-01-01	30.6060
2010-01-01	36.4976
2011-01-01	36.2690
2012-01-01	41.9897
2013-01-01	41.6646
2014-01-01	47.2239
2015-01-01	46.7935
2016-01-01	46.3256