Year	% of GDP
1960	19.63635582545548
1961	21.192052629270652
1962	23.278693165277573
1963	21.766556863935474
1964	22.12643583779245
1965	21.40921409214092
1966	21.134018041237113
1967	21.836233250620346
1968	16.219116278160595
1969	16.365680995113596
1970	17.98367250598459
1971	18.74860652983264
1972	18.43350917589655
1973	20.845819730692007
1974	15.501822704001073
1975	13.801308394102897
1976	11.966260043710152
1977	11.553935971492319
1978	10.886870691068895
1979	9.794197901957508
1980	7.007125588957952
1981	8.739405812917434
1982	6.669374573590102
1983	11.832655045160474
1984	12.30714186855295
1985	15.384061048269826
1986	12.779463111769807
1987	12.631115248433266
1988	10.509412126938962
1989	11.755844261420508
1990	12.70805980803304
1991	12.648011797193275
1992	12.402501317820953
1993	10.578481813185752
1994	11.706053629469123
1995	14.119031154298648
1996	7.275021433919517
1997	10.080189136007279
1998	11.01276891023563
1999	12.961964398992448
2000	11.072295936290784
2001	10.240829212964934
2002	9.624946665552816
2003	6.404792506829404
2004	6.812138026381463
2005	9.864817355999863
2006	10.234211019060826
2007	10.687240577836175
2008	12.728492373968011
2009	13.2041724777738
2010	16.84378130476861
2011	13.708464473720857
2012	10.833975128768744
2013	7.515324021818104
2014	21.990790719747576
2015	21.805380453863584
2016	22.463467946844982
2017	25.60125120084034
2018	26
2019	26
2020	25.999999997909246
2021	25.36413999704756
2022	24.326660001217327
2023	23.747756220026854