Year	% of GDP
1960	18.02222117220834
1961	17.542463235819604
1962	16.23687931740373
1963	16.386282907922613
1964	16.700081532650117
1965	17.074504948569235
1966	17.07169305178319
1967	16.68608983552464
1968	16.545197046612405
1969	16.827561031016998
1970	17.585101586214453
1971	17.81312250932864
1972	16.29593267148546
1973	17.081026706130523
1974	23.96090293876627
1975	21.333688592278236
1976	22.074228331095036
1977	20.67960256601558
1978	17.200753837330005
1979	19.67974921036867
1980	24.060782279628814
1981	23.639249811755253
1982	23.291333412840032
1983	21.51314993514864
1984	22.72777764187102
1985	21.559056761829552
1986	15.957388008321855
1987	14.814268474414169
1988	14.46813401152217
1989	15.554075957408273
1990	16.41445857163885
1991	15.125412648862307
1992	14.397733546393496
1993	13.310026939740869
1994	13.448034123802325
1995	14.047228509384821
1996	15.437590018468445
1997	16.910844545809788
1998	16.309220227031858
1999	15.694732309870341
2000	17.28458001668604
2001	17.203076513968956
2002	18.0240915331738
2003	18.91216598179738
2004	20.850047266825573
2005	22.99109135721094
2006	26.63795604607656
2007	29.18433825865035
2008	30.23385580320554
2009	21.414150179092992
2010	25.417863480642914
2011	26.92963848901843
2012	26.8544885084931
2013	29.70386641413661
2014	30.68026784669379
2015	28.64022185447268
2016	25.037184512121602
2017	27.792946662036126
2018	29.49149202081946
2019	27.87265950230126
2020	25.254811684307874
2021	30.290424348726997
2022	38.624326748963874
2023	35.674093609088956