Year	Number
2004-01-01	525.8888
2005-01-01	504.6406
2006-01-01	550.0259
2007-01-01	609.0066
2008-01-01	589.3841
2009-01-01	600.7827
2010-01-01	590.9591
2011-01-01	591.3113
2012-01-01	603.4848
2013-01-01	722.4048
2014-01-01	758.0022
2015-01-01	737.4182
2016-01-01	739.5978
2017-01-01	874.9750