Year	%
1990	55.28844038880725
1991	55.70369148465439
1992	56.20301611218488
1993	56.78096256378006
1994	57.05658795545228
1995	57.32556779770855
1996	57.506515684179966
1997	57.657664084544564
1998	57.752434774718175
1999	57.82971819814244
2000	57.9469117294104
2001	57.97447959540877
2002	58.02058528917869
2003	58.00779234174337
2004	58.00911556728977
2005	58.05714267866236
2006	58.11712578175895
2007	58.1008412359074
2008	58.1602066239246
2009	58.216907171723335
2010	58.28803612889769
2011	58.43503033368359
2012	58.6791953483066
2013	58.99732831876867
2014	59.3774332409431
2015	59.74133263650561
2016	60.064088499355
2017	60.4447681673623
2018	60.80017868147265
2019	61.178165398371966
2020	61.4676608584996
2021	61.71511880193871
2022	62.00898076163075