Year	% of GDP
1960	6.552226720647774
1961	5.487450980392157
1962	4.791638795986622
1963	7.305952380952381
1964	7.066576819407008
1965	10.908928571428572
1966	33.473580246913585
1967	36.96172927002126
1968	38.205513784461154
1969	38.652589134125634
1970	36.929938900203666
1971	53.84223034734917
1972	37.68311897106109
1973	26.307372175980976
1974	34.43170731707317
1975	38.31464737793851
1976	38.922975077881624
1977	33.248126115407494
1978	28.38753235547886
1979	28.86086778550962
1980	44.541981553109196
1981	44.09514435695538
1982	64.36640097309181
1983	64.77347821616227
1984	64.67411461892739
1985	64.68290370556457
1986	61.00747500314644
1987	60.73398487115901
1988	58.636864242982575
1989	58.1637058892707
1990	55.922851124563934
1991	55.85342153966329
1992	53.14690194812998
1993	53.46142670267419
1994	53.95508668501506
1995	53.20217117731269
1996	54.62737886314118
1997	56.42489896799917
1998	55.06082406750863
1999	53.30818217816158
2000	51.318810383510325
2001	48.27102935604508
2002	49.106115051871335
2003	49.23618328413478
2004	48.701098607585344
2005	48.87778925833137
2006	47.45328221247697
2007	48.7741435228289
2008	48.19461964388537
2009	53.88680037205553
2010	53.84333484589005
2011	51.89236413243717
2012	52.85209967168153
2013	54.8845910948592
2014	53.06828083943294
2015	51.53364341034188
2016	53.345031260040656
2017	54.5137388373837
2018	52.42966447243227
2019	54.50266128478746
2020	54.108743166899174
2021	54.32921888464091
2022	55.317102646321395
2023	51.39430495634751