Year	Number
2004-01-01	233.6789
2005-01-01	220.5569
2006-01-01	240.3436
2007-01-01	253.1398
2008-01-01	256.3389
2009-01-01	252.1791
2010-01-01	234.7762
2011-01-01	231.2871
2012-01-01	224.4662
2013-01-01	219.1451
2014-01-01	223.0632
2015-01-01	207.8955
2016-01-01	200.3562