Year	Number
2004-01-01	8.8056
2005-01-01	8.8655
2006-01-01	10.6318
2007-01-01	10.7244
2008-01-01	10.6705
2009-01-01	10.8331
2010-01-01	11.1654
2011-01-01	11.1876
2012-01-01	11.4544