Year	Number
2004-01-01	61.37191854
2005-01-01	51.59810595
2006-01-01	41.31542835
2007-01-01	42.37185320
2008-01-01	46.01232394
2009-01-01	47.79361329
2010-01-01	59.78967356
2011-01-01	59.00253593
2012-01-01	71.56120554
2013-01-01	20.86244278
2014-01-01	48.30379747