Year	% of GDP
1965	4.933777205073585
1966	8.071031903363988
1967	5.564929040152735
1968	8.497470402448629
1969	9.89785347266573
1970	10.027530649853688
1971	6.029197187940963
1972	8.809446844140584
1973	11.80023526683103
1974	13.97540659879118
1975	14.369342977954425
1976	20.227192868604167
1977	19.143218210103118
1978	16.892709302577405
1979	17.98184032554591
1980	18.406494886163895
1981	33.58093037973423
1982	30.88852249875166
1983	24.76648481181534
1984	21.653333125292193
1985	21.88538150212019
1986	16.25539624888003
1987	16.26450701813172
1988	15.534245583153552
1989	13.500938828423054
1990	13.954816947048412
1991	15.710340691492028
1992	14.246510500766846
1993	14.26866787288566
1994	18.207139124264494
1995	22.698683809719796
1996	24.089673222538206
1997	24.323269343010303
1998	25.35814019042765
1999	13.581324873741252
2000	14.583283332325264
2001	14.657026906876936
2002	17.317289977542412
2003	18.74870195767339
2004	21.828498368609168
2005	23.433971208244074
2006	26.1779206094234
2007	25.89600173585603
2008	25.67911023899829
2009	23.558169088227455
2010	26.39985611458376
2011	25.6276509561916
2012	25.16650002552238
2013	24.982000562964338
2014	24.762779350735844
2015	22.39052197964652
2016	21.026255303767353
2017	21.03442685081303
2018	21.276061474262022
2019	21.01456056024693
2020	19.551373896973153
2021	19.24583372471443
2022	19.14576675423319
2023	19.180513069538616