Year	% of GDP
1960	13.895971443141256
1961	14.889619539689997
1962	15.84864864864865
1963	12.518597236981934
1964	10.90194455937112
1965	10.500198491464866
1966	13.27142580769975
1967	12.470966589244238
1968	11.160561451557703
1969	13.586196175967666
1970	12.607684944619171
1971	8.872991967871485
1972	9.854267869535045
1973	13.43910405972935
1974	9.91657598839318
1975	9.99761819697511
1976	11.801509217690324
1977	8.310355392156863
1978	6.476109771201356
1979	4.843754324780647
1980	2.1425858486561364
1981	5.156491788548894
1982	4.401154401154412
1983	4.104979811574697
1984	0.5293810144383334
1985	3.3086812572558797
1986	10.901488278076139
1987	9.48180815876515
1988	10.554838310669263
1989	9.068733034727233
1990	9.700730915444346
1991	12.901682403601095
1992	12.46225185474937
1993	11.758583924937193
1994	12.173386896641235
1995	9.285247288583934
1996	4.280297982492653
1997	8.953621358888205
1998	8.517054035777425
1999	7.694096533084547
2000	21.133952573200755
2001	29.97341100980512
2002	31.93635093108817
2003	32.60559268683426
2004	36.915821326942115
2005	35.09683459579738
2006	34.20313443698971
2007	40.38087232460873
2008	37.427112480767875
2009	24.369242521192234
2010	31.492371522667728
2011	33.58309125150007
2012	13.020036635495408
2013	12.521019001899827
2014	7.757961292346538
2015	8.512584283133519
2016	9.3576061038417
2017	11.055782529626772
2018	3.2710821344603223
2019	5.404347486634056
2020	6.082015548980548
2021	3.8375636767840846
2022	2.6215881249304473
2023	2.1371908982488743