Year	Number
2005-01-01	178.1468
2006-01-01	208.7682
2007-01-01	220.1300
2008-01-01	247.3242
2009-01-01	271.7879
2010-01-01	282.9201
2011-01-01	346.3060
2012-01-01	455.4611
2013-01-01	456.3506
2014-01-01	501.1584
2015-01-01	595.3697
2016-01-01	554.7278