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	1.6118
2009-01-01	5.1078
2010-01-01	5.4839
2011-01-01	5.7071
2012-01-01	5.8542