Year	Number
1993	0.3211009174
1994	0.3887116075
1995	0.4563222976
1996	0.5239329876
1997	0.5915436777
1998	0.6591543678
1999	0.7267650578
2000	0.7943757479
2001	0.861986438
2002	0.929597128
2003	0.9972078181
2004	1.0648185082
2005	1.1324291982
2006	1.2000398883
2007	1.2676505784
2008	1.3352612684
2009	1.4028719585
2010	1.4704826486
2011	1.5380933387
2012	1.6057040287
2013	1.6733147188
2014	1.7409254089
2015	1.8085360989
2016	1.876146789
2017	1.876146789
2018	1.876146789
2019	1.876146789
2020	1.876146789