Year	% of GDP
1960	19.646913501351968
1961	18.635847115320047
1962	19.371741747098255
1963	20.03994829446586
1964	20.314836171516415
1965	19.890542451798783
1966	18.799553157333886
1967	23.224497222113182
1968	20.85162035718143
1969	21.141229976460487
1970	19.583110417138798
1971	25.388819898647323
1972	26.365052703327734
1973	25.987955345312567
1974	26.077317327703543
1975	29.188436673223023
1976	31.877188570101957
1977	32.90569625770861
1978	36.70542786300259
1979	43.23191884378069
1980	41.94442686223952
1981	56.90466425488931
1982	42.440857244478494
1983	44.01766243407519
1984	41.115042000258875
1985	38.71820808226362
1986	37.58831337423701
1987	37.87428822064475
1988	43.08451810873591
1989	41.26170110307161
1990	42.822205081057035
1991	33.96973714528461
1992	32.25959145630196
1993	31.40253303077076
1994	31.684304498500694
1995	26.268221979493795
1996	33.2407760860418
1997	14.984468837370803
1998	15.029801112234631
1999	16.905240994021355
2000	18.454763440179505
2001	41.34443361268115
2002	43.43687709247391
2003	46.91844536021339
2004	48.673862181211234
2005	52.88603594025351
2006	53.53709327618699
2007	53.924555111941494
2008	56.60437660577422
2009	56.863634660382786
2010	51.0918426780275
2011	49.330199714534906
2012	49.36862583210465
2013	50.482961073872964
2014	52.45680665454402
2015	50.64437398929298
2016	49.1383907243063
2017	46.57546358419183
2018	45.37335505147298
2019	44.93829345410455
2020	54.86579269695853
2021	54.00707014616455
2022	47.45879626129595
2023	47.551346923544344