Year	% of GDP
1960	26.721603354769186
1961	23.979399850958806
1962	28.379179898459295
1963	27.129367065084033
1964	24.90153135195025
1965	20.098977556519174
1966	20.056994388920298
1967	18.963806762060035
1968	20.110400664404157
1969	19.396641930843824
1970	28.683574879227052
1971	29.492833517089306
1972	30.37642913978495
1973	29.134597086546698
1974	34.84263112840467
1975	33.60727913120047
1976	37.65642775881683
1977	38.2259767687434
1978	39.82755081092178
1979	42.29131963723857
1980	43.431131666425784
1981	41.43571718264161
1982	38.32587165920499
1983	37.38605567873861
1984	34.63274969716992
1985	30.357320593211906
1986	23.46850733390854
1987	29.94333724110981
1988	20.008211400564086
1989	15.897706191239244
1990	15.889985491668124
1991	16.29450971953311
1992	15.550722927135677
1993	23.159809796217942
1994	15.362832413404675
1995	27.12104640982316
1996	25.967168660364017
1997	25.756606673332595
1998	29.995404900233343
1999	32.71761396886822
2000	19.87211953847563
2001	20.325426906358732
2002	22.72050779629308
2003	30.26450707009996
2004	27.877434704626943
2005	27.36783815140437
2006	27.858000722709818
2007	23.88218126532511
2008	26.790089237519194
2009	23.281877554628906
2010	31.40991460746312
2011	29.11118403479952
2012	29.06865316795166
2013	29.961438780963128
2014	30.923853086556978
2015	30.741508122061123
2016	31.33778541066366
2017	32.26585012203469
2018	35.967134193374115
2019	35.85487078676599
2020	30.561979556121443
2021	26.02812662548301
2022	29.150442466385922
2023	24.64380612649609