Year	% of GDP
1960	10.363423212121212
1961	10.54059695268898
1962	11.113077331442287
1963	9.624494511803817
1964	9.54303122592555
1965	10.716808869023236
1966	11.229071537125725
1967	11.179814793121091
1968	11.089494163335214
1969	11.120829142456587
1970	12.790473190900956
1971	15.263153750163797
1972	16.08121420436617
1973	13.152222439379354
1974	15.745377374221809
1975	15.685206458249748
1976	13.980825490043319
1977	14.573790779370057
1978	14.429889341079308
1979	14.296135824808815
1980	12.448066065901362
1981	12.983106677774774
1982	15.778884445411167
1983	14.34981812586754
1984	13.47116546449698
1985	12.227747222591711
1986	12.580921493851868
1987	10.881993306636641
1988	10.364253814576339
1989	10.087331202928207
1990	9.754708883079324
1991	9.66571146981014
1992	9.67389284421014
1993	10.033542853265278
1994	9.948696400455619
1995	9.829099681053508
1996	11.304238776348116
1997	11.437643817207318
1998	11.807586436712398
1999	12.652204599600802
2000	12.590925867044197
2001	12.643097683842495
2002	12.748593873933228
2003	12.17818843945664
2004	11.43020950529322
2005	10.953630550572521
2006	10.297115456759071
2007	10.545955276067348
2008	11.264929190094698
2009	12.868527794916263
2010	12.546176948013823
2011	12.311190910026431
2012	12.325931511082667
2013	12.78558421764032
2014	13.226325977765702
2015	13.592117717949076
2016	14.342667619232131
2017	14.648713196178957
2018	14.85647375733025
2019	15.253955725524253
2020	16.02636186955375
2021	14.728462439983078
2022	14.675352323153703
2023	15.102689191518998