Year	% of GDP
1960	27.08029197080292
1961	25.200662630406057
1962	21.487101159804627
1963	21.193613478735486
1964	22.048236114946874
1965	22.181554671741395
1966	23.859940616242433
1967	23.60616540806826
1968	23.776077843766494
1969	25.15671751592799
1970	25.28402857439301
1971	19.36357392560371
1972	16.402025232053614
1973	14.98241665970538
1974	28.556987067709755
1975	40.37225892956637
1976	38.17722738130133
1977	33.861786472962024
1978	36.80581426215724
1979	39.90619824677385
1980	36.168009551940436
1981	31.927090516179348
1982	39.40235114980092
1983	33.965201538292824
1984	36.7277612821434
1985	38.80873171410722
1986	40.360667570513364
1987	43.23453722219546
1988	47.39931287202961
1989	51.1445210997592
1990	49.227733314282126
1991	45.21723534423742
1992	43.93943852042963
1993	41.25194030981806
1994	41.095745357976604
1995	43.4639160764762
1996	45.589375539944
1997	45.12638363993377
1998	44.15781836006398
1999	43.86024932479081
2000	48.145417431786015
2001	49.87932924206827
2002	50.1977925247207
2003	53.58166790912047
2004	57.848528634591986
2005	60.51148229661053
2006	63.10698114158806
2007	66.7489603794906
2008	70.76199280517964
2009	57.20700954168079
2010	60.039287712848946
2011	62.10971492043716
2012	59.119606252898315
2013	56.28183254852656
2014	56.9873796160703
2015	51.31895953510474
2016	48.16381541030968
2017	48.54279633646077
2018	50.51451059379818
2019	49.822653303054054
2020	52.44405116151805
2021	59.322691852171516
2022	67.21843180027179
2023	53.77796569489175
