Year	Number
2004-01-01	39.4610
2005-01-01	44.6665
2006-01-01	52.3094
2007-01-01	67.3827
2008-01-01	77.0404
2009-01-01	90.7858
2010-01-01	102.2012
2011-01-01	111.0332
2012-01-01	124.8327
2013-01-01	150.4433
2014-01-01	205.6003
2015-01-01	231.8960
2016-01-01	239.4244