Year	% of GDP
1962	14.542848967455804
1963	14.718842539671034
1964	15.310825314591458
1965	15.75077566616839
1966	15.825731490609519
1967	17.232577783809514
1968	17.139385208929276
1969	17.38877262496391
1970	17.86484812949685
1971	17.613782555020606
1972	19.354860032726428
1973	18.46147692279491
1974	17.80473374437429
1975	17.109454322931345
1976	18.620669089231463
1977	19.034091926504072
1978	21.183726080325858
1979	19.09069312382245
1980	15.434194907484402
1981	16.254711526801753
1982	13.6788170775618
1983	10.315664837049727
1984	11.45888857546984
1985	11.60485689396046
1986	12.488153237280248
1987	12.662592031037786
1988	11.867338170926581
1989	13.983125039437713
1990	12.664609353580131
1991	16.327421872919096
1992	17.220394949780342
1993	19.048373200312252
1994	20.915259775666755
1995	16.040105487539584
1996	15.202709070412629
1997	16.951880859215013
1998	16.310236466226968
1999	17.32083012078818
2000	17.411575903301763
2001	18.851362911841
2002	19.943811684243713
2003	20.110103483206167
2004	20.994905037157054
2005	17.312722207198668
2006	19.414116204200788
2007	20.20045145018725
2008	19.76639529456831
2009	21.19840025516583
2010	21.361968886895074
2011	22.27831831973706
2012	22.058711641964326
2013	21.193686106953503
2014	21.28641281497872
2015	22.582421282800166
2016	23.612426092582787
2017	25.562397828392637
2018	25.608033904070837
2019	24.631146468803813
2020	28.23752281846747
2021	27.78123200765432
2022	28.102624287142973
2023	26.845746858925164