Year	% of GDP
1968	49.35089439136473
1969	52.30110826219484
1970	48.36763368873461
1971	39.96960014889723
1972	36.52636309167166
1973	34.6184391018699
1974	19.336170107185392
1975	31.001033246216497
1976	33.75542179339648
1977	44.54212090042482
1978	55.99312495648127
1979	53.105565279381175
1980	40.93510735666748
1981	46.11553065850454
1982	62.533169374150546
1983	74.85749112680601
1984	77.87184681585927
1985	85.11817133381874
1986	89.62393640146574
1987	88.55267954794022
1988	84.1909239710879
1989	84.88650525814627
1990	75.35440667385505
1991	78.09687868555827
1992	73.91477111146605
1993	74.04636872069322
1994	71.71226517590819
1995	70.0799150553258
1996	68.03687703112298
1997	68.09329819446724
1998	73.87428961788346
1999	66.99948387224437
2000	62.0389457435896
2001	64.67004385126485
2002	63.00184804408302
2003	58.630336385844686
2004	53.24755767131858
2005	47.67775646322509
2006	48.065627056778965
2007	48.51551839941187
2008	44.58383224624187
2009	58.96581789888492
2010	52.48394948043117
2011	46.11571778763922
2012	48.12200995205858
2013	52.185361684787225
2014	58.0472816626849
2015	70.15254727420032
2016	68.68952952952952
2017	65.88666395646774
2018	61.43549809130911
2019	63.72424249940693
2020	72.21803969250962
2021	66.14541721767434
2022	56.64370939368696
2023	63.286486907746244