Year	%
1987	40.805060111689976
1988	44.70539196010683
1989	49.0273380369596
1990	54.6665865522501
1991	56.8180316122423
1992	59.231834011610424
1993	63.424160521928385
1994	66.30858217254955
1995	68.85898502325558
1996	71.24295256428263
1997	73.23009425721426
1998	75.0307642575402
1999	77.17141878865984
2000	78.60495999795864
2001	79.22198170678888
2002	71.62833649127194
2003	76.56994529310505
2004	77.4065253765369
2005	73.35756101427835
2006	82.8999907822346
2007	83.17885663478948
2008	83.51739344842744
2009	84.12713591173063
2010	86.70136255720254
2011	87.18253527676654
2012	87.77882714066622
2013	87.77542091472688
2014	88.80805662228393
2015	89.67326631901759
2016	89.63089726718104
2017	93.75774143409046
2018	93.75583061603128
2019	93.74265125146951
2020	94.69357528468669
2021	95.27583355856976
2022	95.43739009915421