Year	% of GDP
1960	24.98081985347159
1961	18.843606378376514
1962	16.436737403910122
1963	18.6990991349307
1964	20.0076986305949
1965	21.41749349512053
1966	21.945909391356572
1967	20.07806533631136
1968	20.25101426921489
1969	20.35975694542615
1970	23.87542093288318
1971	24.255054059813467
1972	23.747771125302723
1973	24.534205910838615
1974	25.044543603400122
1975	26.297587667444432
1976	26.0222546520329
1977	27.093516364132668
1978	26.320237577058904
1979	24.762450099676382
1980	26.067287835365942
1981	25.433442794518076
1982	23.749388258569013
1983	23.913807692142996
1984	23.972208689363068
1985	24.40917127100416
1986	24.115867916882884
1987	23.544263552471968
1988	24.96218531361998
1989	25.183297743480278
1990	26.1870976718876
1991	24.161109497314296
1992	25.362277830676273
1993	25.93826288864521
1994	26.492786911856996
1995	25.637057117542827
1996	25.078220716364775
1997	24.51688697809863
1998	23.840087955097005
1999	24.422100786708377
2000	24.271976882272252
2001	25.109746999148808
2002	25.610338291969846
2003	27.163241809523353
2004	28.830702553812078
2005	28.526033611572625
2006	28.976927193052582
2007	30.256992826449974
2008	31.41027358909545
2009	32.19599389742185
2010	33.31448075450499
2011	33.762019472903695
2012	33.85261989977926
2013	33.99332285188461
2014	34.02588317629917
2015	33.32807352445516
2016	32.85961659975805
2017	33.32131782421685
2018	34.398651322521665
2019	33.696576255949914
2020	34.05247172962145
2021	35.13386009254247
2022	34.77874587978097