Year	Number
2005-01-01	5.3747
2006-01-01	5.7412
2007-01-01	6.1811
2008-01-01	6.3707
2009-01-01	7.3397
2010-01-01	8.8060
2011-01-01	10.0590
2012-01-01	11.6490
2013-01-01	12.7718