Year	Number
2004-01-01	117.2013
2005-01-01	134.2788
2006-01-01	175.5508
2007-01-01	239.5064
2008-01-01	299.1988
2009-01-01	265.0158
2010-01-01	226.8822
2011-01-01	262.1792
2012-01-01	327.7306
2013-01-01	308.8511
2014-01-01	314.6673
2015-01-01	324.2444
2016-01-01	323.7365