Year	Number
2004-01-01	0.0000
2005-01-01	0.0000
2006-01-01	0.0000
2007-01-01	0.0000
2008-01-01	2.3307
2009-01-01	7.1520
2010-01-01	7.5290
2011-01-01	7.9543
2012-01-01	8.3904
