Year	% of GDP
1964	13.358652681709987
1965	15.898801515566673
1966	16.740184667796722
1967	17.33113024411897
1968	18.245235932652406
1969	19.286270092130188
1970	20.224027664224476
1971	20.894115617114164
1972	21.733594276574447
1973	21.765579472229987
1974	20.901358953918862
1975	23.95881061494285
1976	25.19290360289279
1977	23.78418011798817
1978	25.414811042568193
1979	25.238588873806503
1980	24.40745272492067
1981	25.821910399357943
1982	26.643723596626277
1983	27.89401564118363
1984	27.658295522533336
1985	33.83760126676898
1986	37.00509776564339
1987	37.03707474317605
1988	37.04936261962741
1989	56.44325288709976
1990	39.298820551650856
1991	39.73947651652987
1992	44.85267923410853
1993	51.11839039178215
1994	46.440043899048085
1995	45.0751144518654
1996	46.710565558534086
1997	49.45846211512995
1998	46.993665882271316
1999	48.390295409493014
2000	48.349032953342615
2001	47.047531643002806
2002	50.33140285947839
2003	52.70284084677972
2004	51.854094605236895
2005	50.884989686233865
2006	52.61674264358328
2007	55.28907225198497
2008	57.022845221146234
2009	67.79008753345333
2010	68.58982356577206
2011	69.7444260530256
2012	74.1268708950959
2013	79.14211935844492
2014	84.36976536403623
2015	95.1997549455052
2016	97.02803835124467
2017	96.31453273850997
2018	100.39313918870364
2019	104.47847658040675
2020	118.95290456342036
2021	116.04281750016888
2022	128.99664854109898
2023	131.12991242942064