Year	%
1990	41.7784310123094
1991	44.5494000510595
1992	46.7538781102223
1993	48.7032850113047
1994	50.7620744259699
1995	51.9830110457194
1996	53.0309755185947
1997	53.9436056394361
1998	54.6453608984906
1999	55.2543930171127
2000	55.7736214570697
2001	56.3648984363583
2002	57.019880114966
2003	57.6766822990512
2004	58.3487749639695
2005	58.9969043469213
2006	59.6649100444546
2007	60.353892633621
2008	60.8496527485225
2009	61.2564038157103
2010	61.614138605997
2011	61.9376991810607
2012	62.250978605745
2013	62.5371685485107
2014	62.7509925981597
2015	62.8712607999845
2016	62.9236924017034
2017	62.9536223670539
2018	63.0199884395219
2019	63.1060703936804
2020	63.346395488957
2021	63.6321870764707
2022	64.0522391858684