Year	% of GDP
1967	18.21330081968087
1968	13.835719238196766
1969	13.811022390922007
1970	13.717013984098791
1971	13.491720554937158
1972	13.380924987642631
1973	14.208963765861743
1974	20.924359444241116
1975	18.26918745916921
1976	16.152547224281673
1977	16.215047472632328
1978	18.661338801794777
1979	17.711657712924254
1980	16.890999070480646
1981	15.471180846459312
1982	16.495962302551295
1983	17.646602479747894
1984	21.789816467592672
1985	20.39760612099711
1986	21.095464040801197
1987	20.67796870717453
1988	21.770871378065063
1989	20.40041142767398
1990	18.493906398852776
1991	19.872444269007932
1992	20.98695142374592
1993	21.35353662933079
1994	20.52377078636725
1995	18.843276290503276
1996	22.275690675257465
1997	21.91834843501899
1998	20.863624769639276
1999	17.14483146502279
2000	19.420038976465563
2001	19.35693945007733
2002	22.78735497980971
2003	27.479262119310594
2004	25.17767678581673
2005	24.56823558380173
2006	24.63757270918836
2007	22.48411133827925
2008	17.39375253408517
2009	22.542970123664993
2010	23.859890039835967
2011	23.26871709802645
2012	25.90577560523963
2013	27.222821093790134
2014	26.557382709660356
2015	26.83932983468621
2016	27.70543888156941
2017	26.92704185323505
2018	28.50639262939793
2019	27.862257521895224
2020	31.50195629776419
2021	40.344518637776645
2022	40.83081486756246
2023	37.29477590550885