Year	% of GDP
1964	29.076994299679278
1965	28.86638098948189
1966	27.77777777777778
1967	27.078384798099762
1968	23.682777382256397
1969	27.629743815605963
1970	31.021371045155018
1971	31.267830193306906
1972	27.772649602005856
1973	24.638797779995343
1974	24.096863262466567
1975	25.108502272954496
1976	21.540014352960476
1977	19.719508898491434
1978	19.822630206547032
1979	19.904896553382738
1980	22.864560796192123
1981	23.015013155858227
1982	15.755687129947024
1983	11.070838441447684
1984	10.624656530500092
1985	14.822450638146591
1986	11.916835699797158
1987	31.964223299310774
1988	28.724676497152192
1989	23.917641493019534
1990	34.68989490374646
1991	31.24937598485868
1992	31.590943222876934
1993	24.282548057419078
1994	29.511546367049817
1995	18.588436382769384
1996	17.445234596833906
1997	13.19969466344074
1998	14.061562197108987
1999	13.827891602578116
2000	18.134843555496754
2001	7.953645889445259
2002	8.667715663933956
2003	14.085236256893516
2004	16.681664505987325
2005	17.826181421637667
2006	17.073662037281302
2007	15.837026311901298
2008	13.81452036737969
2009	13.694450434179112
2010	16.794099224815877
2011	16.32368028820971
2012	33.014836045690295
2013	28.62675706081645
2014	30.75989831406375
2015	19.210880671126258
2016	23.701988596198966
2017	26.192372475954524
2018	17.467300404448864
2019	18.24693558212267
2020	15.091069994565586
2021	16.92814201725639
2022	31.87816199864393
2023	40.47038241671595