Year	% of GDP
1960	20.016731280913795
1961	18.38728241453744
1962	17.831169635254255
1963	11.532493008954216
1964	17.96730089501801
1965	18.34113515936886
1966	18.14499201821993
1967	18.73706847232252
1968	19.047672155016922
1969	18.46688048778344
1970	18.335256438865493
1971	23.79425340718293
1972	22.113790940525625
1973	25.715484868537676
1974	16.62367052092597
1975	19.67268649232828
1976	25.38944582736267
1977	25.728559872830996
1978	25.104621648113497
1979	22.95661604262591
1980	21.900143489070146
1981	22.33228619983649
1982	21.233933080563517
1983	22.24688835386617
1984	23.639239203673476
1985	27.582649495721668
1986	27.544517860307998
1987	29.02665321290542
1988	31.217242470272595
1989	32.609863785700824
1990	32.620379291882415
1991	33.78054540282601
1992	37.220716688942666
1993	41.46393446201754
1994	44.77936154556632
1995	46.39099757456955
1996	42.827120845301906
1997	48.44606485453887
1998	55.659382992380856
1999	55.687331898231626
2000	55.75106297797058
2001	56.09740917375539
2002	56.92899928663727
2003	69.6540510950284
2004	69.90224603718983
2005	71.83609580545647
2006	68.60233761731413
2007	71.67467453053278
2008	81.76212889404054
2009	80.04581151764317
2010	85.2779028852421
2011	89.25809780593865
2012	98.79948911244425
2013	104.84863454272397
2014	96.68804267392088
2015	99.98183375127098
2016	93.47422904021313
2017	98.95365039567548
2018	75.28565195250626
2019	78.05644431485118
2020	91.78914501323734
2021	86.40765787128468
2022	72.37702637681855
2023	68.26659938650151