Year	% of GDP
1960	16.095087145947414
1961	17.21571295155871
1962	18.540134495683862
1963	18.236294197016136
1964	16.37658484822517
1965	18.571973090392106
1966	17.160247045996037
1967	17.997798441964687
1968	17.20600029660406
1969	18.09806697968159
1970	19.462028338172377
1971	22.11713698124437
1972	21.91143893473551
1973	22.156183360661032
1974	24.02294259118278
1975	21.98683706834341
1976	23.43825572172029
1977	22.36476854707183
1978	23.025843349581262
1979	26.167577991795525
1980	23.896583325469646
1981	24.05753121956115
1982	20.315347753304632
1983	17.994571353449743
1984	20.04688030064247
1985	19.320856225602494
1986	18.664624321668526
1987	19.791384772402818
1988	18.931311809707015
1989	20.479386876169112
1990	22.390966856709188
1991	17.005096312973418
1992	19.37130829161373
1993	20.392892163130014
1994	19.986139374731607
1995	19.79151686838054
1996	17.952319363173544
1997	19.26963930461722
1998	22.118046124016857
1999	21.087009169067283
2000	19.689582056129545
2001	19.834815680721267
2002	19.78399661515835
2003	19.790175521696032
2004	19.8781564478728
2005	19.951802434299097
2006	20.293066801107486
2007	22.36499928040342
2008	23.74497152887437
2009	21.003562973368233
2010	19.456409286852665
2011	19.432515661466134
2012	20.02885590294111
2013	19.81561008309661
2014	19.839949559868764
2015	18.988926247697204
2016	18.824543006326774
2017	18.17776068940713
2018	18.202866759705582
2019	16.254166477213165
2020	16.16815349797098
2021	16.86629041445543
2022	16.950366852382277
2023	16.1866483077534