Year	% of total merchandise exports
1960	10.62553556126821
1961	12.583892617449665
1962	13.719735876742481
1963	19.675324675324678
1964	20.662549129702416
1965	24.044585987261147
1966	30.86933888599688
1967	38.39458413926499
1968	40.693257359924026
1969	37.348960790643396
1970	31.39459065813095
1971	33.282434644859165
1972	31.201423850827098
1973	31.92032942540008
1974	32.039196014668235
1975	28.990574494937217
1976	27.091279680430237
1977	22.50160425062245
1978	27.905118471500685
1979	22.075549579667083
1980	27.858569003388716
1981	26.27914918406139
1982	25.219423971863407
1983	23.092643878802267
1984	22.453527246781153
1985	14.950145072683624
1986	12.540986395715228
1987	21.161077209976074
1988	23.85089286476961
1989	34.14199803830137
1990	32.49223192055716
1991	36.76821851087363
1992	46.40935480685711
1993	45.90504059226698
1994	30.319313307469752
1995	44.66896446273304
1996	47.5270813063487
1997	45.655615140118854
1998	53.14728201113563
1999	57.254003759845794
2000	26.436641851459196
2001	27.289216794709
2002	26.97818990442917
2003	26.37655203700511
2004	27.373915671420473
2005	37.57991827336771
2006	36.17626214283565
2007	38.055686619117765
2008	39.23501479082703
2009	40.80121993890596
2010	40.570010097908835
2011	40.651144842719965
2012	42.20285239966544
2013	41.90870813420072
2014	42.82705789069889
2015	42.742853172489454
2016	43.132963743587
2017	43.73955491337883
2018	46.862209544748566
2019	48.97386175525272
2020	50.2762501918399