Year	% of GDP
1965	8.09148568133769
1966	8.08783165599268
1967	8.087719298245615
1968	8.185667241649679
1969	8.90431187241583
1970	8.403917416622551
1971	8.65864729913754
1972	9.517564402810304
1973	9.31121341092678
1974	9.96252745832795
1975	9.078902032847134
1976	10.465597516813244
1977	10.552488708426479
1978	11.063247312693749
1979	11.594798083504449
1980	11.786470837452336
1981	11.866890917827968
1982	11.116892848222463
1983	14.168769076057233
1984	14.84155698334477
1985	15.094823532764345
1986	15.767275571197139
1987	15.09464487946934
1988	16.833706671593195
1989	16.96159501141826
1990	16.886563051859795
1991	16.948490289970735
1992	16.530957696741524
1993	17.19839050671759
1994	18.475002845615855
1995	18.964566790602753
1996	18.328149667213882
1997	16.72637882789822
1998	16.657335615748668
1999	16.49740224428457
2000	16.310042332859947
2001	16.550538013759038
2002	16.548636523895787
2003	16.07968744699377
2004	15.77687088842257
2005	15.652360822526331
2006	16.154750613031677
2007	16.840036498912053
2008	18.13862776173625
2009	16.936902238007267
2010	15.723910407412225
2011	15.969516083321524
2012	15.434946471561792
2013	15.008243022509014
2014	14.54645369628286
2015	14.010378030827752
2016	13.808950653237748
2017	14.200988516000649
2018	14.516881339850974
2019	14.318893379632264
2020	13.69380647385571
2021	14.449216223777933
2022	15.616508820892427
2023	15.140678328069477