Year	% of GDP
1970	18.859018129924756
1971	18.87186899036264
1972	19.177490038965164
1973	20.01302339205527
1974	23.038008180660103
1975	21.51171064105218
1976	22.52490204690639
1977	22.873098713790473
1978	22.66978929868177
1979	23.411336850300412
1980	23.74242165943708
1981	25.31276341534746
1982	25.237934422985937
1983	25.37476265659606
1984	27.0041437187375
1985	27.274306637144214
1986	24.433288494450355
1987	23.741835760417715
1988	24.144533105919354
1989	25.25111136035206
1990	24.897708158713698
1991	24.833411011012522
1992	24.533660619619877
1993	24.663723653247118
1994	26.082679732123072
1995	27.70796520514499
1996	28.08846678438137
1997	30.397256585197237
1998	31.003960027757472
1999	31.347800688764554
2000	35.11586657996652
2001	35.14852927377613
2002	34.53348993130389
2003	33.62859755152096
2004	35.15666304599707
2005	36.51637647349701
2006	38.54535163341119
2007	39.66504554190083
2008	40.003309832762184
2009	35.11489940442567
2010	39.13487660518861
2011	42.00120480273905
2012	43.67218622592095
2013	43.85431923172169
2014	44.49193814973004
2015	46.002263315562516
2016	45.52830595856703
2017	47.209364090525
2018	48.05423388852391
2019	48.30691467638974
2020	45.34747265925431
2021	49.47716134069227
2022	55.07971272646203
2023	51.40156004551595