Year	Number
2004-01-01	339.2870
2005-01-01	235.5607
2006-01-01	266.3654
2007-01-01	307.5069
2008-01-01	365.9850
2009-01-01	366.9978
2010-01-01	416.9831
2011-01-01	467.5835
2012-01-01	531.3344
2013-01-01	601.7505
2014-01-01	686.1099
2015-01-01	747.5427
2016-01-01	824.1955
2017-01-01	873.1358