Year	% of GDP
1960	74.51562065449153
1961	74.55034818643995
1962	73.87024077808088
1963	73.43894624421502
1964	70.5027034926202
1965	69.20498726370829
1966	68.86247169586461
1967	68.96224174780338
1968	68.09183392906242
1969	67.30167476826796
1970	65.0247478441311
1971	64.10770718192181
1972	62.15506546378715
1973	62.6370772249798
1974	63.120158361519394
1975	63.08317612009877
1976	62.4078542197102
1977	62.54861433847809
1978	63.16271663376487
1979	61.503131326509376
1980	59.89965055509169
1981	60.50606220347918
1982	61.819182371428916
1983	60.6931525566241
1984	60.03225466326707
1985	63.140802881838745
1986	62.61728866032323
1987	62.85623332857661
1988	61.54086573102785
1989	62.334912777184236
1990	64.18261285275129
1991	62.81721558182291
1992	62.46169933655361
1993	62.00753448369179
1994	61.832839650518764
1995	61.61832443780616
1996	62.078537486411555
1997	62.62999077115974
1998	62.722260130517604
1999	63.06928086699373
2000	60.664519743721634
2001	63.593634234511974
2002	63.976955680240145
2003	64.34872520763541
2004	63.07257512870758
2005	64.07318437592549
2006	64.87685404905513
2007	66.04014850149031
2008	68.34796175535224
2009	68.00606952330871
2010	67.84351708253806
2011	69.02312362626182
2012	69.20862704581847
2013	70.76230615872412
2014	70.34532579316748
2015	69.950933310914
2016	70.69260326456478
2017	70.35275870420267
2018	69.34177890967716
2019	70.86149775533916
2020	72.13997484051349
2021	70.47675711543556
2022	71.59891355213622
2023	72.44786613046215