Year	Number
2004-01-01	784.1068
2005-01-01	842.8019
2006-01-01	900.3976
2007-01-01	1012.7899
2008-01-01	1094.5125
2009-01-01	1132.2242
2010-01-01	1206.1556
2011-01-01	1161.7855
2012-01-01	1228.0817
2013-01-01	1332.9362
2014-01-01	1237.9743
2015-01-01	746.4943
2016-01-01	834.6617
2017-01-01	900.3783