Year	% of GDP
1960	23.869963571587295
1961	23.30644710197798
1962	17.745093602942287
1963	20.118480218155984
1964	17.999995846154803
1965	15.658432992091978
1966	15.424354243542435
1967	16.780824791237123
1968	18.307073954983924
1969	17.328021670839867
1970	18.41842105263158
1971	17.170230945806892
1972	15.640579710144928
1973	15.382450331125828
1974	18.348474095102908
1975	17.82846715328467
1976	18.829173599556295
1977	18.490957446808512
1978	18.71003530005043
1979	17.694901960784314
1980	17.098501664746948
1981	17.10965479042791
1982	16.474788732339295
1983	14.41891891891892
1984	12.8961919666145
1985	15.403893695920889
1986	20.64638026272129
1987	20.28849141768387
1988	20.30318664643399
1989	18.094319669679066
1990	21.431889763779527
1991	20.225055288148823
1992	21.789283874291602
1993	16.34521773450862
1994	16.212793680524452
1995	15.071577352774096
1996	14.170423943987073
1997	14.877849081655233
1998	15.295713416224677
1999	14.549989650175945
2000	14.581461286804798
2001	11.547087828931309
2002	12.661979191410518
2003	12.888227187715326
2004	12.793835002850395
2005	12.02674409750079
2006	14.7089559157911
2007	17.20045065083172
2008	18.503948449499088
2009	22.05727601707836
2010	20.45657757267378
2011	24.900109493928767
2012	24.375217806967786
2013	25.08619861941177
2014	28.620460536565457
2015	30.479655342253974
2016	29.3906277095463
2017	24.50433905908126
2018	19.28663991782956
2019	22.03237900000767
2020	31.188948827998136
2021	26.87864449661246
2022	24.39935795831067
2023	28.400128307642213