Year	% of GDP
1960	10.154439717882974
1961	10.167301903561203
1962	10.848992077115852
1963	10.626173457973191
1964	9.135817318760187
1965	8.848297928031599
1966	8.227383683720076
1967	9.21188945447672
1968	8.994124887582581
1969	8.925408125713922
1970	9.738464883827119
1971	10.04720073241327
1972	10.143600088390304
1973	9.962642660739842
1974	8.61371534699504
1975	9.251216755743853
1976	8.59274336743383
1977	8.308370519518373
1978	8.31587542724965
1979	8.02498182225647
1980	8.64261205374082
1981	9.158074132118553
1982	10.489678074254721
1983	14.422616679255917
1984	13.629438311445114
1985	15.368246953786196
1986	15.258273026609078
1987	15.546403157256853
1988	13.190149023415138
1989	11.084323764357466
1990	17.569473216186058
1991	16.18161488874469
1992	15.752745869579634
1993	15.254652562676673
1994	15.632961515168104
1995	14.447646944065209
1996	13.512095550739334
1997	13.212973258897154
1998	13.115513558830688
1999	8.145936890557222
2000	8.080594509597484
2001	8.08339019705914
2002	7.7863326609778225
2003	8.828817599880852
2004	8.80946780461131
2005	8.9910736442313
2006	9.666734706650702
2007	9.568485256453867
2008	10.233588452648483
2009	11.288620859508665
2010	11.21186949267428
2011	11.02354196577918
2012	11.128300735669114
2013	11.042234233429879
2014	10.180197084063273
2015	11.411380145062672
2016	10.28081875969811
2017	10.478984286502303
2018	10.410505394338433
2019	10.342063240044624
2020	11.399362146449617
2021	10.075964534303031
2022	10.057839253862651
2023	9.504197323070738