Year	%
1987	40.820152934626044
1988	44.72556250388704
1989	49.04907787146809
1990	54.68040393623069
1991	56.836287918835396
1992	59.25136330209906
1993	63.439247140177095
1994	66.32036339670746
1995	68.87077917022079
1996	71.2526247463222
1997	73.24207910218303
1998	75.04246020842575
1999	77.18160966299277
2000	78.61588920955917
2001	76.02468567336625
2002	68.96404846624078
2003	74.87615570132421
2004	75.64961539741043
2005	72.03368260234294
2006	80.82757480835198
2007	81.19070057826727
2008	81.55269179906976
2009	81.99217126912077
2010	84.40443574662544
2011	84.8591044286119
2012	85.40637030932973
2013	86.98851185315576
2014	87.95550798575718
2015	88.76261266700055
2016	88.71042308943183
2017	92.2655935689294
2018	92.33114314867728
2019	92.41179665414563
2020	93.20923526407016
2021	93.7820875222131
2022	93.96571742000755