Year	% of GDP
1960	26.088608837150627
1961	25.48331498414875
1962	26.84938515302627
1963	27.514772598422372
1964	27.814457030366235
1965	25.367130941243968
1966	26.79604946283769
1967	24.64872546544567
1968	25.238540785450507
1969	24.832314698795727
1970	25.49004320576393
1971	25.31486546465742
1972	24.945025716868276
1973	25.8836934402337
1974	29.56313134889111
1975	28.98947290124249
1976	30.787732453151047
1977	32.00872130233519
1978	30.00166938591238
1979	33.551917341131606
1980	34.800989494222954
1981	32.46328546615651
1982	29.0005413580627
1983	28.81571717019076
1984	26.87709753174899
1985	25.683033729953795
1986	23.736897469458256
1987	22.733636880321974
1988	22.182441331511175
1989	22.483140672025435
1990	19.823863945583657
1991	16.661894247081197
1992	26.379372410351863
1993	25.021327057005223
1994	29.602904248425226
1995	35.446542224001874
1996	41.766490432383634
1997	36.74497828445911
1998	35.332777694507264
1999	35.11731371814238
2000	32.801011168893304
2001	37.58435637329411
2002	37.66607597004797
2003	38.70045532297148
2004	43.07899500170669
2005	45.66630188135164
2006	45.60462614606571
2007	44.196470933443656
2008	46.07123878914559
2009	39.54765573906935
2010	41.91731578452759
2011	43.155099386514195
2012	43.41432248938273
2013	43.539410786660376
2014	40.3089094404338
2015	36.0094294463511
2016	33.46942872201514
2017	36.186401847690085
2018	39.510191228718476
2019	35.953784387264605
2020	35.67342800731072
2021	39.62149266333637
2022	37.21003449515201
2023	29.572425287388164