Year	% of GDP
1960	52.12192262552533
1961	52.556877478454645
1962	51.49531056412494
1963	50.976314269332136
1964	50.09900990086778
1965	50.24726916998098
1966	49.764079149340354
1967	49.7274645416344
1968	49.69336829589367
1969	49.395781402773345
1970	50.482132152204116
1971	52.47324360739294
1972	53.29927374498802
1973	51.72394249310417
1974	44.444684811561395
1975	54.564594206209364
1976	50.346983123402154
1977	52.376533686915316
1978	54.17094646563776
1979	53.919994820428904
1980	55.11256028305142
1981	57.59641197186565
1982	59.79705855493328
1983	52.89858941754378
1984	49.28404410384505
1985	50.16388969722586
1986	51.658585361939494
1987	50.33046613710114
1988	45.93355153151138
1989	47.3679544081423
1990	47.1275984504485
1991	46.60873229989886
1992	48.20211310403032
1993	49.331437803057874
1994	49.28211651392353
1995	48.3363385297229
1996	52.424392605088386
1997	53.32429826220553
1998	55.12174235021512
1999	56.23073896665354
2000	55.60647359282552
2001	56.19145355881331
2002	56.35055914413044
2003	55.68002663551758
2004	53.645348416944174
2005	52.14810919877399
2006	48.41260701344817
2007	49.54815234561283
2008	54.44853123677179
2009	55.51124998187129
2010	53.81278117638367
2011	54.36976408810641
2012	56.298213254691746
2013	57.2209852376656
2014	57.152875879040224
2015	58.34470935922605
2016	58.98263633159213
2017	58.276807152230404
2018	58.001268658844516
2019	58.88317546006916
2020	56.344614578555586
2021	54.98280430063741
2022	54.94103922233441
2023	56.91100729546196