Year	% of GDP
1960	14.245698279311725
1961	13.291349022207491
1962	13.555616288603446
1963	10.530376084860174
1964	8.206029471407328
1965	8.948761125811885
1966	9.680142575743364
1967	9.873629719853836
1968	10.15417331206805
1969	9.92000723098477
1970	9.894157190874633
1971	10.180337405468295
1972	10.469339456850294
1973	8.88317985273099
1974	9.605313092979127
1975	11.090139990136198
1976	10.805096456801724
1977	10.68728134522063
1978	9.911944184937088
1979	9.829857757011077
1980	11.905571036951448
1981	12.071721649775116
1982	11.78303477602092
1983	11.117786254720542
1984	10.553967169394069
1985	10.61651180022172
1986	10.26423060266561
1987	9.98489701539387
1988	9.915085958599867
1989	10.755673340096427
1990	10.973582467158831
1991	10.752796815916788
1992	11.060571995180528
1993	10.748956235664997
1994	10.275484075691004
1995	10.039364853286857
1996	10.389835283993571
1997	10.210279744458413
1998	11.403007323134691
1999	11.076433799473499
2000	10.900007734398306
2001	11.755048963871385
2002	11.741640206778973
2003	12.152048389889714
2004	12.387323224273016
2005	12.862257347084613
2006	13.37064433575328
2007	13.442869621190164
2008	14.048568877675896
2009	14.660632778409086
2010	14.204832077635512
2011	14.372658461448076
2012	14.685863885252209
2013	14.976541809735764
2014	15.225222337369281
2015	15.083529732203536
2016	15.240022344011845
2017	15.418972465081678
2018	16.05172731154889
2019	17.077865652348525
2020	18.03934527188843
2021	18.159800615181677
2022	18.767207800963828
2023	18.898557609625847