Year	Number
2004-01-01	30.3271
2005-01-01	42.7545
2006-01-01	42.0976
2007-01-01	59.8278
2008-01-01	70.3256
2009-01-01	64.7688
2010-01-01	64.3272
2011-01-01	79.0308
2012-01-01	73.9341
2013-01-01	61.0538
2014-01-01	67.1638
2015-01-01	66.2404
2016-01-01	66.7475