Year	Number
2004-01-01	639.9637
2005-01-01	692.6576
2006-01-01	749.0386
2007-01-01	819.7093
2008-01-01	894.0846
2009-01-01	931.0598
2010-01-01	971.4442
2011-01-01	1063.6023
2012-01-01	1034.4386
2013-01-01	1140.3867
2014-01-01	1097.6246
2015-01-01	1103.5909
2016-01-01	1105.4933