Year	Number
2004-01-01	5.8540
2005-01-01	6.3455
2006-01-01	7.3465
2007-01-01	9.0267
2008-01-01	9.8847
2009-01-01	9.7864
2010-01-01	8.8569
2011-01-01	9.2591
2012-01-01	10.4656
2013-01-01	10.9393
2014-01-01	11.1806
2015-01-01	10.4209
2016-01-01	10.8321