Year	% of GDP
1960	6.015737723054796
1961	7.399437812828244
1962	8.799062314400004
1963	9.807095197198915
1964	12.282870514611536
1965	13.26219512195122
1966	21.815718157181575
1967	25.44620031153759
1968	30.736842105263158
1969	38.25382538253825
1970	45.32269760696156
1971	50.440528634361236
1972	50.944138473642795
1973	50.89997049277073
1974	47.87208463572974
1975	41.899866742813636
1976	33.77125193199382
1977	33.46482577251808
1978	36.36363636363637
1979	37.21939539060162
1980	40.05214965738888
1981	43.40567612687813
1982	37.65848523994067
1983	29.38912003732939
1984	29.443530616678565
1985	22.994412881020303
1986	21.48534525583706
1987	15.500833459615093
1988	23.584515488647174
1989	36.1081829228058
1990	37.3669769651251
1991	33.21017470125145
1992	30.419300632151717
1993	28.779530976493273
1994	25.98254420793032
1995	27.130133748150858
1996	23.443521213287084
1997	24.051986599591878
1998	37.93667259434894
1999	25.6259512487481
2000	29.551080393757047
2001	29.888136618650968
2002	30.19380520688052
2003	30.143007422336428
2004	31.35144300143236
2005	25.374133887578026
2006	21.692781593681012
2007	23.074756863038335
2008	35.46833480087579
2009	32.6299076727603
2010	34.7021091252242
2011	39.11811504670365
2012	35.99986178096781
2013	24.879328715918223
2014	25.253062566288687
2015	28.44328922031556
2016	22.067698206496118
2017	25.005896319132535
2018	25.902879643882027
2019	30.82044055923258
2020	32.727173432520615
2021	27.362608447531734
2022	26.790452317319545
2023	30.320091374349488