Year	% of GDP
1960	43.189201299428696
1961	41.7274256870443
1962	40.02923264311815
1963	38.84001451115545
1964	38.32405390139595
1965	36.968301753143265
1966	33.83689668416336
1967	35.05317053958251
1968	36.54167537079591
1969	33.950035067353504
1970	33.43176059140123
1971	31.96629324092851
1972	32.8022972948256
1973	32.45866176732057
1974	31.87668838391864
1975	30.16018635942545
1976	29.408425638980084
1977	29.361327029409406
1978	28.676829199133465
1979	27.77980145191494
1980	26.54550578830723
1981	27.46229277200247
1982	28.447767916362032
1983	27.27320129422839
1984	24.90459788185859
1985	25.689124592031888
1986	25.032651030450975
1987	23.635452130121802
1988	23.153323492091225
1989	23.913633735847586
1990	23.0670733915693
1991	22.842445620223398
1992	23.31001291909674
1993	22.197939967010257
1994	22.752824523853267
1995	23.421879371163428
1996	23.19579581477549
1997	24.484250788201845
1998	25.303138267200865
1999	25.169285514224
2000	25.387136041297502
2001	24.144960503281908
2002	22.702627543567424
2003	22.15193733677144
2004	22.001890008534716
2005	21.574509699233104
2006	20.418346054092464
2007	19.937951432909664
2008	20.351365282755026
2009	21.786922974953416
2010	22.688810174178865
2011	23.81964297862802
2012	23.386195534034538
2013	23.707594593490793
2014	23.49273200978554
2015	23.262840775624166
2016	22.32833020356975
2017	21.963203536687203
2018	21.65123535939572
2019	20.67787132228868
2020	21.854132554896612
2021	22.66250807607427
2022	22.348042212213777
2023	23.373695792404355