Year	% of GDP
1960	70.12199737745273
1961	73.85721637143668
1962	75.29426040529063
1963	75.11694038232784
1964	76.25783699861907
1965	77.67143339713996
1966	80.05894908019108
1967	80.3150367220719
1968	81.22509498656288
1969	78.84599756196668
1970	79.25526057892964
1971	81.692499669967
1972	74.7172810707457
1973	74.05951396281132
1974	76.04250232764808
1975	72.6761739581018
1976	80.72265453625207
1977	81.28619447581261
1978	81.22042983271376
1979	76.75554011784389
1980	81.63937791548962
1981	75.5192633859257
1982	79.52953698260639
1983	79.09471285599636
1984	82.88849411074695
1985	80.21653732056197
1986	76.6789899047844
1987	80.1546338579514
1988	75.62748715849074
1989	79.43366221546012
1990	81.70129415248896
1991	83.07140111501006
1992	84.22278194304315
1993	80.98302624567594
1994	78.83870611545534
1995	78.55738491516772
1996	77.6321969268118
1997	74.61620520508674
1998	71.90033755474866
1999	71.3437226404166
2000	71.69172944386047
2001	70.42847458360647
2002	70.3468920012565
2003	72.09746112895064
2004	70.8410271620728
2005	72.12882050780985
2006	71.60275392481006
2007	70.89472782076
2008	73.49823728844692
2009	74.27137667768982
2010	74.34135435809485
2011	76.2673158189701
2012	75.04042719538113
2013	73.17543766771333
2014	71.60941250382422
2015	70.917021990262
2016	70.49233145047265
2017	69.45026693102946
2018	68.29757587565484
2019	67.79896006181592
2020	69.69261048580233
2021	66.41225799093155
2022	65.48540878457139
2023	64.71066996957425