Year	% of GDP
1960	6.198984245627394
1961	7.126832126844652
1962	6.993725731199678
1963	7.282888486930705
1964	6.854968082406137
1965	4.165383217357095
1966	4.227352150163295
1967	4.795304807465039
1968	6.6295650340133365
1969	5.994569246898605
1970	7.860891412935961
1971	7.985816810284829
1972	8.15671166848764
1973	10.256727135730625
1974	8.392921038070217
1975	13.000841391854726
1976	15.169449768309029
1977	15.98300752286001
1978	18.730402662915154
1979	20.96535486528424
1980	18.913541669174805
1981	16.784085472300287
1982	18.14138139578189
1983	16.32692846226698
1984	15.986293630735085
1985	14.413498779096056
1986	17.207926660794058
1987	18.185576937478455
1988	17.188399979006892
1989	15.634397813621248
1990	15.826251486291328
1991	17.54105504963472
1992	17.479890191007144
1993	20.65733034027508
1994	13.218921549302989
1995	14.127057802414159
1996	13.245328054309983
1997	12.52603963472591
1998	12.240470891036761
1999	10.694039301176314
2000	9.863858989332833
2001	9.088112748239205
2002	8.124244466185056
2003	10.051601368133657
2004	9.250489541740524
2005	10.04433767833031
2006	11.030008567999376
2007	15.936430075813723
2008	13.543246570011878
2009	14.09274704695694
2010	15.62385423998101
2011	19.958683359424008
2012	21.747681306611916
2013	27.139648934418076
2014	25.38133610381911
2015	29.09726244658513
2016	30.350126345315342
2017	29.56650188974979
2018	27.731328757299455
2019	27.522149813282564
2020	27.136706186172088
2021	26.78411078181508
2022	28.08067051428728
2023	27.8261049324017