Year	%
1981	8.257540084954995
1982	10.563641356435209
1983	12.14121600905597
1984	14.997282702840518
1985	17.442411775591413
1986	21.2020963507808
1987	24.422410238674807
1988	29.629821317110235
1989	37.509187792897315
1990	50.111217750342725
1991	51.69925933492259
1992	51.40524615689621
1993	53.408752232576695
1994	56.449220497745
1995	59.91055383473844
1996	59.95200007983004
1997	62.10061351025644
1998	62.08990739085676
1999	63.04063833193163
2000	66.17869831154489
2001	68.09701032476724
2002	72.11763466583373
2003	74.10271724416313
2004	77.5795634898247
2005	78.63894662023213
2006	79.9750108516221
2007	80.53230046370037
2008	82.33849974624292
2009	85.8949395619029
2010	83.62566411565517
2011	82.15624782324348
2012	79.81966251875117
2013	80.75187089012881
2014	82.9090355342583
2015	83.6504627875912
2016	83.65516660665028
2017	86.16014654740326
2018	86.1770172007912
2019	86.22709409127508
2020	85.71519758463224
2021	85.02866481121802
2022	83.87317198925538