Year	% of GDP
1960	68.72930837296093
1961	69.27847957209514
1962	70.98605801664043
1963	69.99272046589017
1964	68.68382664345208
1965	68.82680119001424
1966	70.49872857025676
1967	68.74287185901917
1968	70.33106234379815
1969	68.10673831404756
1970	67.2456306733505
1971	68.33696621420786
1972	68.99005544705592
1973	69.03050983540747
1974	67.95003479009974
1975	72.66577784015156
1976	73.65863608004992
1977	74.15049426733053
1978	75.66391897808829
1979	74.00948202541451
1980	73.12498142810448
1981	73.81627482639573
1982	73.80826466958949
1983	77.71577302388444
1984	75.12799153898712
1985	74.1582623834901
1986	75.31155723031276
1987	75.71633613058009
1988	73.38186904600519
1989	71.80829543140317
1990	72.32730821977044
1991	75.31909053479117
1992	77.90517186388863
1993	77.10193799932917
1994	75.98599261483334
1995	75.96874836138639
1996	75.66416935586018
1997	74.86998464067258
1998	75.23352114588283
1999	76.29441289660618
2000	75.90429079758675
2001	76.52098806619149
2002	75.58834338472276
2003	76.15003212519362
2004	75.62091404936298
2005	75.25506730837806
2006	74.34745419349031
2007	74.13902185720596
2008	73.94587620345041
2009	72.35455324505863
2010	74.13991770809297
2011	72.50648679625927
2012	72.4552454206011
2013	73.43521231653816
2014	73.56133512950906
2015	75.21986689505292
2016	76.87511754522176
2017	75.38505085319926
2018	75.10588074564333
2019	74.26434917812027
2020	73.94303531496051
2021	72.99125233795188
2022	70.70907556549508
2023	70.9724397827917