Year	%
1990	54.2056074766355
1991	53.3333333333333
1992	53.2163742690058
1993	52.7027027027027
1994	52.6881720430108
1995	52.1367521367521
1996	51.9362186788155
1997	51.6423357664234
1998	51.2445095168375
1999	50.8833922261484
2000	50.377358490566
2001	49.8727735368957
2002	49.320882852292
2003	48.8392089423904
2004	48.3449477351916
2005	47.8798586572438
2006	47.4323062558357
2007	46.9447138700291
2008	46.551724137931
2009	46.124763705104
2010	45.6642066420664
2011	45.3097345132743
2012	44.96699669967
2013	44.7328244274809
2014	44.3741209563994
2015	44.0894568690096
2016	43.7428243398393
2017	43.4317718940937
2018	43.054935238946
2019	42.6953125
2020	42.400544032642
2021	42.1597633136095
2022	41.9015889287545