Year	Number
2004-01-01	148.4706
2005-01-01	144.6666
2006-01-01	141.7854
2007-01-01	138.3317
2008-01-01	139.1008
2009-01-01	141.6500
2010-01-01	123.6278
2011-01-01	116.7269
2012-01-01	112.8584
2013-01-01	109.9817