Year	%
1990	55.202384779304204
1991	53.84721883005991
1992	52.447928601171796
1993	48.00701403806992
1994	47.29229472137393
1995	47.68101287153393
1996	47.54756396342553
1997	47.2563527821873
1998	46.42241776817197
1999	45.31363131626623
2000	44.36435099221348
2001	44.131910273022406
2002	43.19530202836893
2003	42.450335557014235
2004	41.70286358031045
2005	40.94600519130529
2006	40.59825660195574
2007	39.814885624125935
2008	39.042150545104334
2009	38.35228524347599
2010	37.89969812780845
2011	37.5391450708825
2012	37.09340089559935
2013	36.947781519555086
2014	36.81095983115926
2015	36.521392430569584
2016	36.5523538213204
2017	36.42302126955056
2018	36.473796725691514
2019	36.306095893904875
2020	36.38253709300289
2021	36.36989365978111
2022	36.32239615808456