Year	%
1983	14.722841167250126
1984	17.661402000204106
1985	21.502227206363923
1986	25.392713276567026
1987	28.016672551503863
1988	33.69723635765788
1989	40.67922346549207
1990	45.95704686707764
1991	45.991487180838135
1992	47.06391077240308
1993	48.93562631689563
1994	51.03410325062904
1995	54.048511760586706
1996	53.27061136702412
1997	55.747513478793
1998	56.4667989854112
1999	57.924108803269334
2000	60.57056440572292
2001	62.51366513399199
2002	67.45548378482117
2003	70.10777983722397
2004	74.53326583651226
2005	76.4594315041909
2006	77.90942927183673
2007	79.05172783942714
2008	81.12906870754837
2009	85.40371839840734
2010	82.51787017170389
2011	80.28254972093046
2012	77.7775669625997
2013	79.02094227426319
2014	81.71463272321539
2015	82.4805653904213
2016	82.51448798387456
2017	85.14411495711484
2018	85.15877612771081
2019	85.16146390951654
2020	84.61422924656327
2021	83.75576629604468
2022	82.37150188805494
