Year	% of GDP
1965	13.21762349799733
1966	13.817330210772832
1967	15.481651376146788
1968	15.141955835962145
1969	15.369059656218404
1970	13.57302932865634
1971	12.5416132972654
1972	13.565573770491804
1973	13.378218315566363
1974	7.3196959695697865
1975	11.055348120007222
1976	11.258692085319165
1977	14.471897552096918
1978	14.44316769458059
1979	11.166993513465115
1980	11.172974779150632
1981	14.217412058249245
1982	19.271445978830577
1983	21.15924507911239
1984	20.93789967169631
1985	22.401758776050627
1986	26.969849503822925
1987	22.03765813657682
1988	26.272433421195064
1989	25.397246905395654
1990	38.74924630690383
1991	76.22212525471677
1992	55.549644631431484
1993	35.86434765184438
1994	33.92276560661649
1995	32.19660089476084
1996	27.261350500047726
1997	26.627347475208275
1998	30.501486119015997
1999	26.863474268514782
2000	21.479131915334953
2001	23.630841121495326
2002	25.275237273511646
2003	22.998205674554224
2004	19.855908932618586
2005	15.710458945797942
2006	13.894026026909179
2007	14.005573869112295
2008	13.39683693506782
2009	18.479023616057084
2010	17.13045200505177
2011	14.882058166608939
2012	15.059659936040012
2013	16.386810508353857
2014	17.755447187273138
2015	24.191770262518716
2016	25.70592421752323
2017	24.421269818663564
2018	23.054349321958114
2019	24.766321730412493