Year	Number
2004-01-01	208.1644
2005-01-01	212.1424
2006-01-01	218.2445
2007-01-01	234.2376
2008-01-01	241.8281
2009-01-01	247.1221
2010-01-01	265.3754
2011-01-01	281.2677
2012-01-01	288.4758
2013-01-01	288.6319
2014-01-01	280.9664
2015-01-01	276.2746