Year	% of GDP
1960	31.53075845443406
1961	30.260730357369464
1962	34.75005867882716
1963	38.795879360333544
1964	36.841776419970394
1965	33.06772908366534
1966	35.701275045537336
1967	27.52808988764045
1968	23.157894736842106
1969	29.08366533864542
1970	30.087390761548065
1971	33.504098360655746
1972	35.90425531914894
1973	29.87012987012987
1974	27.728285077951004
1975	24.859287054409005
1976	25.738396624472575
1977	26.096822995461427
1978	31.397704253882512
1979	28.538483712885558
1980	19.51716377247637
1981	19.28528648432821
1982	16.412540688709953
1983	13.932438984968481
1984	17.779300891021247
1985	16.947040498442366
1986	18.971061093247588
1987	14.17640628941394
1988	13.811733299434309
1989	13.048472860899832
1990	8.871486637656982
1991	9.831932159793393
1992	7.719655179274295
1993	8.870007934483432
1994	11.421082892798102
1995	10.079480340969605
1996	11.984187779945177
1997	10.870541898384554
1998	11.024364503991926
1999	11.118771677523052
2000	12.31597575484604
2001	12.099220523090098
2002	12.502543770033784
2003	12.385263607914995
2004	9.659472723550936
2005	10.971756597476348
2006	11.1842158367266
2007	10.754175262307921
2008	9.999453904022358
2009	9.250385771725112
2010	10.156212732348513
2011	9.719883920213775
2012	10.203335642479503
2013	10.115810490564673
2014	9.23424884302508
2015	9.35431140339708
2016	8.959862916654412
2017	8.427761974496795
2018	8.527127272520108
2019	8.542233901527304
2020	8.118437723047057
2021	8.100368351426432
2022	8.586114291789007
2023	8.090769726722826