Year	Number
2004-01-01	0.3394
2006-01-01	1.3892
2007-01-01	4.3621
2008-01-01	7.4804
2009-01-01	4.0301
2010-01-01	5.7810
2011-01-01	6.6229
2012-01-01	7.7233