Year	% of GDP
1965	1.18956840018301
1966	1.32246235468518
1967	1.3600572655690801
1968	2.06812652068127
1969	2.42276887871854
1970	2.43870077486466
1971	2.2880616881626703
1972	2.18284348508048
1973	2.62585362905663
1974	2.9769976394957602
1975	3.39944638894608
1976	4.626713597628751
1977	6.53812666116763
1978	7.991313539847409
1979	8.520521487204249
1980	6.62908562787285
1981	4.86431834635644
1982	5.12254528847618
1983	5.56085058152265
1984	5.67764991105304
1985	5.48666915012506
1986	5.5038198632891
1987	5.82388892185368
1988	5.20870655678968
1989	4.9310307374823505
1990	4.10390378548896
1991	3.97936507936508
1992	3.8027717182086502
1993	3.30030387105298
1994	3.11471290363111
1995	3.1816531526080096
1996	2.88277157260057
1997	2.9982668977469698
1999	2.23808309966862
2000	3.05379188712522
2001	2.5498043400924897
2002	6.30647414997671
2003	2.0346772508878197
2004	2.70575805599577
2005	1.45257572407694
2006	1.98624247635426
2010	0.8162514532469691
2011	1.407162104666
2012	1.8594998831502703
2013	1.86822395642382
2014	1.88778911739064
2015	1.8863087786068398
2016	1.7419849185113099
2017	1.5923404255319198
2018	1.13781025849235
2019	0.729567173018744
2020	0.26176127285265
2021	0.815977410678401
2022	0.42705656262948005