Year	%
1990	56.5356548457304
1991	57.2706935123042
1992	57.8523378456939
1993	58.2551870609378
1994	58.673647469459
1995	59.036455643912
1996	59.28589716733
1997	59.4673476833272
1998	59.6246022475531
1999	59.7553246653479
2000	59.8694002083643
2001	59.96541996542
2002	60.0380282700725
2003	60.1040052715001
2004	60.1541089796064
2005	60.2837256256309
2006	60.3028838408249
2007	60.306336247381
2008	60.5281878001067
2009	60.8387630571931
2010	61.1792500251332
2011	61.5077743079967
2012	61.8360424932804
2013	62.2756470810504
2014	62.7392446787008
2015	63.1474257166207
2016	63.5164936138932
2017	63.9011299004285
2018	64.3714495143852
2019	64.8484104954837
2020	65.193183216439
2021	65.4939253129969
2022	65.7312793117371