Year	Number
1994	7.9994
1995	9.90448
1996	10.82212
1998	9.82986
1999	10.27775
2000	10.38605
2001	9.92595
2002	9.9422
2003	10.27456
2004	10.07261
2005	9.7969
2006	9.93127
2007	9.0701
2013	10.83621
2014	10.80224
2015	10.69878
2016	10.17603
2017	10.18063