Year	% of GDP
1960	26.400908413435285
1961	26.510640912855933
1962	28.440212176228354
1963	33.39129854064373
1964	34.00265660703805
1965	27.76757971767835
1966	30.404693930962175
1967	28.730018973280124
1968	25.425538676435526
1969	24.175494605203582
1970	24.408382779972207
1971	25.10395659473112
1972	29.010398134340832
1973	32.11589235521182
1974	23.804847549694067
1975	23.281083415418635
1976	22.018448732798536
1977	21.270848879974505
1978	22.918238633361028
1979	24.065320553635846
1980	25.763424103744686
1981	27.933768656716417
1982	28.95686861708797
1983	31.451338682476127
1984	34.39744781087065
1985	32.34385435448612
1986	40.29274188123952
1987	26.085183898814268
1988	30.537881640152204
1989	24.693179484172685
1990	27.889699581549205
1991	31.05366954600155
1992	31.211938345121208
1993	27.429020869464342
1994	27.845393814931906
1995	30.245250351810483
1996	32.112250309351246
1997	29.095817898739533
1998	27.046651211100176
1999	25.749616494393514
2000	31.47066917508983
2001	32.5198546010872
2002	27.814047246607345
2003	20.424548262488422
2004	22.930690554507617
2005	21.571071911245248
2006	20.021874402063737
2007	18.78566518921551
2008	17.229314061422034
2009	19.412873693179872
2010	23.572070336972025
2011	26.4435555327651
2012	31.66735296217698
2013	36.77456379174754
2014	39.57431420645116
2015	46.41308867361279
2016	49.69604402479632
2017	53.31036762622552
2018	54.56069880445041
2019	56.10760611971459
2020	69.20464294439783