Year	% of GDP
1970	19.94650373913836
1971	19.62424239227828
1972	19.6069181579716
1973	20.90777502267512
1974	25.119754627816306
1975	22.719748197208492
1976	24.561752218294615
1977	24.4029939148706
1978	23.312601987051757
1979	25.143531001916603
1980	27.109848694944905
1981	27.923304793635623
1982	27.621888751051536
1983	26.958783011803146
1984	28.05098446186815
1985	28.309945141647336
1986	24.54393129389035
1987	24.461795924855366
1988	24.958585537982234
1989	26.38121619981065
1990	25.834450294644927
1991	25.558555315604735
1992	25.095696404579176
1993	23.97903456520563
1994	25.25209825955991
1995	26.670307672285325
1996	26.858730254587144
1997	28.857424432233564
1998	29.78277619773898
1999	30.62809862016126
2000	34.91398235117361
2001	34.252257877956374
2002	32.775347136940944
2003	32.451525381748944
2004	33.896826021608945
2005	35.87128275168588
2006	38.41755203362003
2007	39.46344914983032
2008	40.24681368300546
2009	34.614263292506664
2010	38.726425300348495
2011	41.50969777452633
2012	41.91206113908651
2013	41.46139354822864
2014	41.90518522846533
2015	42.69393364544219
2016	42.291548973730606
2017	44.04326062471418
2018	45.30309520239546
2019	45.919768433310836
2020	42.81319278809963
2021	46.713696690269245
2022	54.48602641501512
2023	48.95921729178858