Year	% of GDP
1966	6.689240852258521
1967	5.754939159079553
1968	5.404248699134631
1969	5.6215272620130445
1970	4.604334586031826
1971	4.557883189978217
1972	4.78583120647714
1973	5.276244266921684
1974	5.156349770450442
1975	4.41429030901313
1976	4.2970876668101505
1977	4.663579909722619
1978	4.709023463243335
1979	3.97338065583868
1980	4.07448005549782
1981	4.32951173284875
1982	4.652489074905754
1983	4.031270422673198
1984	4.6533824122020135
1985	4.2193653673826725
1986	3.877308952462137
1987	3.4515131461954702
1988	3.1619604202198457
1989	3.501210567076327
1990	3.2873678750015665
1991	3.02972198365137
1992	2.7917842978494996
1993	2.6921307412350335
1994	2.6009489304665125
1995	2.851901647012094
1996	2.792696277025079
1997	2.6371246792650522
1998	2.1446025152989
1999	1.9409908419355637
2000	2.151853225624005
2001	2.339509415050788
2002	1.7811164321679
2003	1.610785803115089
2004	1.6225264974925997
2005	1.1456435911336997
2006	1.165189898592186
2007	1.1744155760708914
2008	0.8577909570992602
2009	0.8335888556446727
2010	1.2019085702902932
2011	1.312133989907082
2012	1.654727530471845
2013	1.3021275870146465
2014	1.3824625977352534
2015	0.9575802012883678
2016	0.9611609740863056
2017	1.3048003599657083
2018	1.0265693512957044
2019	1.2662888757841086
2020	1.3819033826866127
2021	1.0889947510813924
2022	1.17288994269624
2023	1.0347438790892398