Year	Number
2004-01-01	7.098509934
2005-01-01	7.595198675
2006-01-01	8.671357616
2007-01-01	8.878311258
2008-01-01	10.037251660
2009-01-01	10.368377480
2010-01-01	11.216887420
2011-01-01	12.872516560
2012-01-01	14.176324500
2013-01-01	14.176324500
2014-01-01	14.176324500