Year	% of GDP
1960	13.31053538542626
1961	13.270138122568989
1962	15.301541075112244
1963	16.13520579668429
1964	15.610375937049136
1965	18.883008670194798
1966	15.011688179693058
1967	13.113645148821028
1968	13.409322583634511
1969	12.685900040633888
1970	11.577926624032314
1971	10.145562556255626
1972	8.941360571601088
1973	8.256806550665303
1974	9.963892401818368
1975	6.170054456545899
1976	3.844342654688093
1977	4.1278280395020825
1978	5.7271988002703615
1979	7.630412089910527
1980	7.454187804120509
1981	9.16509065901366
1982	9.42738950576965
1983	8.527644621825043
1984	7.51038468173193
1985	7.0826274694621
1986	7.2961132013925205
1987	4.007871949151029
1988	3.5423329934095373
1989	2.9319371122590994
1990	2.9260445548104514
1991	3.21565251894247
1992	3.8432511797544797
1993	4.483067801997186
1994	4.897726714746729
1995	4.837594188584427
1996	5.182606954779512
1997	7.071051619551047
1998	7.321818261977059
1999	7.884055341646498
2000	8.720351168343738
2001	9.530208973032197
2002	9.971614911898058
2003	8.636882996186426
2004	7.5880938419300685
2005	8.089390779153117
2006	8.787024671640243
2007	9.177067843030487
2008	10.056620262649783
2009	10.705566376632476
2010	9.927111365779176
2011	9.322144046051847
2012	9.886146412313176
2013	10.448334491604042
2014	10.471289940227454
2015	10.28874596290046
2016	10.30269039639085
2017	10.938643492768017
2018	10.85985698525765
2019	11.068797269779406
2020	12.626615362656658
2021	11.465112312540963
2022	11.34424685683223
2023	11.290029409682342