Year	% of GDP
1960	15.87578065865706
1961	15.370331771168487
1962	13.707207596742103
1963	15.104906522044129
1964	14.688603364860306
1965	14.038374775828782
1966	15.055671137075688
1967	14.33417637186904
1968	14.431992917331042
1969	13.96856527520818
1970	15.091164540635667
1971	15.36348742137667
1972	15.948306803627522
1973	18.284110098388783
1974	22.33738083726721
1975	21.444812000776267
1976	21.133008175780034
1977	21.149949730683765
1978	23.45884354359231
1979	25.46368286351208
1980	28.9838073544887
1981	29.96006497668042
1982	27.25118519230625
1983	26.682724885738264
1984	27.088386132782823
1985	27.23797921545108
1986	25.489019002623287
1987	28.657745566200056
1988	32.59777797063239
1989	31.33857569275078
1990	31.79941255632544
1991	32.76460648985546
1992	36.269596472777266
1993	38.37079543166488
1994	39.345019454795896
1995	40.16491549615291
1996	39.893552089687915
1997	41.91100942295714
1998	42.392832408820404
1999	42.32140071386244
2000	47.05090609973711
2001	46.482612516248
2002	49.04405433146441
2003	53.64254449101075
2004	59.01037139941401
2005	60.691651172411724
2006	61.60336425566871
2007	60.49815408402612
2008	60.17665417154937
2009	50.301817693175764
2010	53.35336931719994
2011	55.14999590625487
2012	53.816338249951535
2013	52.32180293561408
2014	50.709342443346145
2015	46.934582221713974
2016	44.97533630959038
2017	46.43282954720971
2018	48.52769444849436
2019	46.50772831171088
2020	44.02836534630896
2021	49.339127759703544
2022	52.72914893901866
2023	47.82623802476721