Year	Number
2007-01-01	2.9458
2008-01-01	2.9413
2009-01-01	2.9355
2010-01-01	2.9296
2011-01-01	5.8462
2012-01-01	5.8328
2013-01-01	5.8184
2014-01-01	5.8069
2015-01-01	5.7964
2016-01-01	5.7885