Year	% of GDP
1970	59.80360126453994
1971	60.32864064957206
1972	63.154934217944295
1973	83.32990821587636
1974	74.67637049537952
1975	83.33510287869026
1976	77.19950497570254
1977	81.63936849067291
1978	79.77665959501111
1979	82.10655201915124
1980	86.35804612105953
1981	88.09716648006672
1982	83.83907196269676
1983	75.64113348140818
1984	71.96776195638826
1985	64.51595033137824
1986	56.86733395822124
1987	59.10551962768811
1988	61.08615251455843
1989	65.8896757953656
1990	64.94673275409255
1991	68.58110607546524
1992	63.77391384127457
1993	59.64434233995295
1994	58.1205521354113
1995	61.73814729371331
1996	61.23291629096678
1997	69.33598170768977
1998	67.66985164790502
1999	67.6687828550919
2000	72.38413267951564
2001	73.5554301261003
2002	73.85401492229197
2003	80.51346411119415
2004	84.86324301700994
2005	88.9859991044013
2006	89.28279750468887
2007	93.3254844532086
2008	97.13883306377744
2009	89.15266917318871
2010	85.95648121077036
2011	88.96606172468267
2012	90.65104345105793
2013	89.83497666286198
2014	87.74946869612924
2015	83.19423616351932
2016	77.49187993990682
2017	81.26611772822005
2018	81.27570319962217
2019	80.88478328938704
2020	72.28127617271718
2021	61.85012844647842