Year	% of GDP
1960	20.13103448275862
1961	19.9375
1962	20.572164948453608
1963	19.673819742489272
1964	21.45074626865672
1965	14.626593806921676
1966	10.194871794871794
1967	9.420393559928444
1968	7.104736129905278
1969	7.099175216254275
1970	9.305849056603774
1971	8.84659580580293
1972	11.034245396661504
1973	6.085344320188346
1974	8.272415635295165
1975	19.352799898874984
1976	21.75743964065132
1977	25.528910274850286
1978	29.27701759190698
1979	33.88969327660179
1980	37.201206021430735
1981	40.399000402522475
1982	69.85632687856794
1983	47.8046694603609
1984	41.64355062413315
1985	45.27463482301033
1986	40.32561101197261
1987	32.40352879150086
1988	35.42342265243185
1989	36.04510108657023
1990	31.10200484477564
1991	25.034678903691983
1992	25.161468100601482
1993	24.618316692206427
1994	23.708047263152135
1995	26.31539005728355
1996	26.73744783158793
1997	25.833745500151828
1998	40.35814709503235
1999	43.42729523618424
2000	44.91885965344527
2001	53.75090897727708
2002	70.35858780156171
2003	43.064199296563054
2004	24.09198980555911
2005	22.389603491425483
2006	23.676995640149563
2007	22.9724355892532
2008	27.114795693518058
2009	19.825490963794813
2010	21.369741087581705
2011	21.94419163176997
2012	22.144596275564265
2013	24.35026456466056
2014	25.13265465798976
2015	27.776908956402558
2016	25.647782704004108
2017	23.89396602245791
2018	24.91166794256216
2019	25.27342984101648
2020	27.79042696832011
2021	26.670186729349666
2022	26.773584150153102
2023	28.840315553339156