Year	% of GDP
1960	20.98232756073054
1963	20.95474802879671
1964	22.719315308305777
1965	24.986985944820404
1966	23.560952531146505
1967	26.01409686641945
1968	24.735520207017277
1969	24.63738875064452
1970	27.86660575605299
1971	28.22306439045123
1972	27.8247404762281
1973	22.857877299211697
1974	22.064334790755776
1975	25.357696107729655
1976	20.469192516111768
1977	15.683742142489582
1978	15.494849977608599
1979	15.018823529411765
1980	14.319656971065593
1981	13.551896814304607
1982	11.042578828694479
1983	9.968396559508237
1984	10.960412470124096
1985	11.560337519468487
1986	10.574166375123244
1987	12.611858918329464
1988	14.749600163724427
1989	15.63463204692982
1990	15.588647323239876
1991	15.505330917543953
1992	14.559931828741371
1993	15.037523506020293
1994	14.82145030199823
1995	15.379337572144902
1996	16.739680687398014
1997	17.69909954417411
1998	16.85839693527393
1999	19.84319081620304
2000	19.209371525628104
2001	16.88241600730547
2002	15.854635699176947
2003	15.184491242512768
2004	14.891444921413058
2005	14.182936177936584
2006	13.558549555140626
2007	13.04052861653226
2008	11.719758691062406
2009	10.062706462376122
2010	9.065239024082828
2011	9.571437255173555
2012	10.19654447210057
2013	9.441386041971693
2014	8.815685952962445
2015	8.516814912624364
2016	7.959136142891235
2017	7.981110826473843
2018	15.472062172326936
2019	15.31061655302569
2020	10.381466660331675
2021	12.496875781054737
2022	13.190164061454363
2023	13.7257712529781