Year	Number
2004-01-01	3030.7060
2005-01-01	3018.0671
2006-01-01	2955.6932
2007-01-01	2917.4005
2008-01-01	2842.4904
2009-01-01	2962.3868
2010-01-01	2942.0501
2011-01-01	2997.8530
2012-01-01	2981.2327
2013-01-01	3214.1079
2014-01-01	3249.5495
2015-01-01	2976.9407
2016-01-01	2590.2995