Year	% of GDP
1960	13.531981628766662
1961	14.128384234946209
1962	15.532277710109623
1963	18.40649374206421
1964	21.011861534737353
1965	22.723570037187887
1966	18.87722442709
1967	18.972598885950596
1968	16.061729684562355
1969	15.15393358968778
1970	15.792339427446544
1971	15.538185899076609
1972	14.01605911510252
1973	12.81188881645232
1974	13.182447617534221
1975	16.38559851775901
1976	17.46647847565279
1977	18.31142986884633
1978	16.990483967924508
1979	17.11258753815766
1980	17.66853560737726
1981	18.76626551064717
1982	19.264311649530015
1983	18.788266321246365
1984	18.270756213643573
1985	18.325472247578666
1986	18.76365318386417
1987	19.13432632463374
1988	18.014211069472555
1989	18.91145769053388
1990	18.935373033017385
1991	18.896433470507546
1992	20.133483574586116
1993	20.685003082074104
1994	19.39740524583036
1995	18.545523339132075
1996	18.996657348244696
1997	17.91919654476031
1998	17.71119964625777
1999	15.564942439351764
2000	16.310695767461823
2001	15.996908223234065
2002	14.962412867695829
2003	15.314869932058006
2004	15.650780487520727
2005	16.266449644857286
2006	18.2822175766145
2007	17.535941839176335
2008	17.996421190404117
2009	17.577731282158002
2010	15.961552580504112
2011	14.631623082046413
2012	15.168985183372854
2013	14.982380077745647
2014	14.907553845367838
2015	15.810928107590371
2016	15.93574695640639
2017	16.33289050862605
2018	17.0682914767895
2019	15.499643468719327
2020	14.81553934464468
2021	14.534693203202758
2022	15.386451811646026
2023	13.70979150270782