Year	% of GDP
1971	31.81979174045477
1972	31.19499439081041
1973	35.212212955558094
1974	43.445502810743285
1975	38.281107058780485
1976	37.31017104118814
1977	45.201747570856334
1978	42.703985669502906
1979	47.32
1980	48.5816806478204
1981	50.72043219664446
1982	52.9795635938488
1983	49.32220460044222
1984	47.72838758832309
1985	51.96705636496264
1986	52.575047820693975
1987	50.22975301550833
1988	52.87995815931297
1989	58.07600528386574
1990	63.08146352106082
1991	66.04199686245539
1992	60.78815654324824
1993	53.6007138853385
1994	54.80537849865321
1995	55.83303677315703
1996	50.60427316788497
1997	49.69552082251827
1998	55.97137173115607
1999	60.340934631143995
2000	62.34129312272899
2001	67.76749643106906
2002	65.86148401013634
2003	73.73675952926334
2004	68.5739714691732
2005	67.38190139684441
2006	68.88329753409741
2007	67.03309926326054
2008	68.29781939847905
2009	63.08680964791421
2010	62.67166626177942
2011	64.05272656068607
2012	57.45258199691231
2013	60.86998535871157
2014	60.82162470301369
2015	67.19493497008479
2016	68.75816467264156
2017	68.72372408659632
2018	59.95388185791928
2019	60.578884086204795
2020	60.347965546698425
2021	54.413276380153086
2022	52.58076275544348
2023	53.92532630830781