Year	Number
2004-01-01	621.5924
2005-01-01	631.8170
2006-01-01	663.6286
2007-01-01	707.7260
2008-01-01	705.6000
2009-01-01	431.2066
2010-01-01	499.5738
2011-01-01	514.3097
2012-01-01	544.4873
2013-01-01	556.5441
2014-01-01	571.7735
2015-01-01	558.4643
2016-01-01	543.6496