Year	% of total merchandise exports
1960	13.139552128132879
1961	17.455633953388926
1962	15.037237935339446
1963	17.060159319467974
1964	16.189164679407515
1965	18.083689154568745
1966	17.318188988799495
1967	23.9966794526822
1968	17.693836978131213
1969	18.264634683619864
1970	18.666237221209027
1971	18.366621025174215
1972	14.91740783900094
1973	13.679797619271254
1974	21.643155412276336
1975	21.354691160080392
1976	16.96022574025435
1977	18.922328630464598
1978	18.904186471916965
1979	20.406244162889436
1980	20.660285823101614
1981	20.112576823071233
1982	19.81380817815462
1983	16.707934626132612
1984	18.426711780073816
1985	18.55005411960942
1986	18.806664777748367
1987	17.127928112516656
1988	15.927241829020069
1989	16.395331686717476
1990	17.75847424680725
1991	16.87443313629233
1992	18.226105252470663
1993	20.750858372571425
1994	22.304147557008523
1995	22.609746414792706
1996	25.60323347746616
1997	26.433576889635212
1998	22.62345968998226
1999	22.502253070047807
2000	23.480391891792156
2001	24.046406426972247
2002	24.669157915740218
2003	26.005473347939102
2004	29.99576040764352
2005	32.40088909447395
2006	33.36959448675442
2007	34.49938980054846
2008	34.50014518218013
2009	42.492797399799535
2010	45.04742557747277
2011	46.22072014164808
2012	47.298812611552535
2013	51.54198802814401
2014	49.20527801233357
2015	48.69862646868434
2016	47.67323992743888
2017	50.76434122054507
2018	50.52229806393604
2019	51.72505598149494
2020	50.71407584380941