Year	% of GDP
1960	52.0872052072528
1961	53.0846290448011
1962	54.8194589777984
1963	56.5431799703678
1964	57.2429888587046
1965	58.3292622358795
1966	57.9228684284995
1967	60.5025012876503
1968	60.9668385462903
1969	59.7940709166867
1970	63.4884244595293
1971	66.1450011145845
1972	71.0841576479905
1973	72.584521191028
1974	68.9889202758228
1975	69.6596479174079
1976	70.2286682728323
1977	71.3167448853226
1978	76.1623514130312
1979	74.5712163220666
1980	73.3987373830681
1981	74.5551147929657
1982	77.4487668134343
1983	81.7665083323681
1984	85.37349294554
1985	88.0738773832116
1986	100.37318170469
1987	107.756577908042
1988	113.118138503524
1989	114.641231103897
1990	107.071148134926
1991	107.664190820726
1992	109.262654092438
1993	113.888943963572
1994	113.617649281753
1995	114.340659264326
1996	109.724939309421
1997	100.867190992104
1998	103.423863413047
1999	107.705304801771
2000	108.531301283273
2001	112.28276348776
2002	113.18875711927
2003	114.919462998793
2004	113.814611947187
2005	113.649196319483
2006	114.635158352118
2007	117.504345810044
2008	121.843134167875
2009	128.20431497969
2010	127.740865611629
2011	128.383725353617
2012	128.709614363053
2013	127.188792992494
2014	128.314824781555
2015	132.759447784976
2016	139.991358717439
2017	138.69456416371
2018	142.474413670139