Year	% of GDP
1960	3.7803285952805847
1961	3.7106481886530607
1962	3.981977871090186
1963	3.9770349539607843
1964	3.7481120234517658
1965	3.5645351514931485
1966	3.5219640647566006
1967	3.5410914463401397
1968	3.3082936555864566
1969	3.1356996957595444
1970	2.8393784140963874
1971	2.8425567269938794
1972	2.8921127805016806
1973	2.8039346912656775
1974	2.8295705276756786
1975	2.8714371372362484
1976	2.800070272271567
1977	2.8133758486661837
1978	2.7925087443047443
1979	2.762314769387523
1980	2.7185956376481437
1981	2.799909702401023
1982	2.839495241263116
1983	2.818311143535241
1984	2.750788589267631
1985	2.6959551519113862
1986	2.625576493960953
1987	2.634132372563157
1988	2.5262766404365316
1989	2.425160069328959
1990	2.3577041023743903
1991	2.1659757017271777
1992	2.06502103934633
1993	2.0026792305895653
1994	1.9251065852295073
1995	1.7987151889379336
1996	1.7829464710576233
1997	1.7466943519194802
1998	1.7006274722352686
1999	1.676058815770993
2000	1.6396519876408209
2001	1.5914890904444206
2002	1.5765057690683537
2003	1.573949074059724
2004	1.557938112034951
2005	1.4679838766608406
2006	1.4698690533893382
2007	1.427344244240904
2008	1.465084037000178
2009	1.5533070290235984
2010	1.4799515441452136
2011	1.419068915713744
2012	1.4149935188237754
2013	1.3633452199107123
2014	1.3259155056766256
2015	1.3027975392352724
2016	1.3280692921851662
2017	1.3310695764127958
2018	1.3334636371644557
2019	1.357574463194724
2020	1.5244687754329533
2021	1.4939590785173806
2022	1.5401649194285476