Year	% of GDP
1960	7.819183309401513
1961	6.317907444668008
1962	5.732704040520318
1963	5.447396182986478
1964	5.4256393001345895
1965	5.17451444133878
1966	5.699481865284974
1967	6.022617124394184
1968	6.199721768584044
1969	5.772495755517826
1970	5.656539426988661
1971	5.254675611858626
1972	5.2959985099183555
1973	5.190311418685121
1974	5.825571549534294
1975	5.995281211559015
1976	5.445246690734056
1977	5.579662682168004
1978	5.699330861952391
1979	5.507094621575813
1980	5.620426266719584
1981	6.82344536750049
1982	7.239611234407286
1983	7.3908901376558465
1984	6.780741396683868
1985	7.005407582120463
1986	6.978862803213477
1987	6.280112470552473
1988	6.114882551343557
1989	6.329231881735059
1990	6.836644105357309
1991	7.1285057780516485
1992	7.624174544373273
1993	7.476289191308363
1994	7.541848877202008
1995	8.026945342562954
1996	8.144330814918794
1997	8.043869161587464
1998	9.024718785022866
1999	9.611989928037413
2000	9.367768696995366
2001	10.20374796955967
2002	10.635522965820089
2003	10.993109561865536
2004	10.353779835058154
2005	9.246065327077984
2006	8.7695421761119
2007	8.418385273171808
2008	8.668704359096145
2009	9.19165041931722
2010	8.859323594913564
2011	8.711455053943538
2012	9.096938282101794
2013	9.286420786557576
2014	9.478563100524113
2015	9.642869056156913
2016	9.956363893330035
2017	9.830272171381454
2018	9.925129495395582
2019	10.876436104887766
2020	12.745828993498376
2021	12.677629810322482
2022	14.34277882595849
2023	13.228305287818653