Year	Number
2004-01-01	0.050306872
2005-01-01	0.097259952
2006-01-01	0.207935071
2007-01-01	0.449408056
2008-01-01	0.778079619
2009-01-01	0.969245732
2010-01-01	1.066505685
2011-01-01	1.096689808
2012-01-01	1.123520140
2013-01-01	1.183888386
2014-01-01	1.214072509