Year	% of total merchandise exports
1960	69.71491712707181
1961	71.31804623415363
1962	71.44144144144144
1963	70.37684052907413
1964	69.00735385148687
1965	70.98594112561992
1966	74.52487161225025
1967	75.84075282629773
1968	76.88352376672756
1969	76.47282127601677
1970	76.13511946422393
1971	75.73684299935447
1972	75.05133894275646
1973	78.93208011589199
1974	79.57995523294677
1975	78.76807546226505
1976	84.44372292615351
1977	85.75766115032425
1978	85.9432983328686
1979	90.52035673804588
1980	89.28799351989757
1981	77.35275201253047
1982	77.55790135760904
1983	75.9820417475806
1984	75.1184609484761
1985	76.16439383452067
1986	74.86469921788229
1987	73.69673481454585
1988	69.64880006320722
1989	71.46664045580351
1990	74.12988704365311
1991	76.51054238617185
1992	75.19838682958179
1993	74.49814846499805
1994	77.94094959593288
1995	75.01478467463433
1996	70.73728894058658
1997	73.34101764728499
1998	76.72186760556161
1999	78.28644013516552
2000	77.71536380150935
2001	76.20883247773087
2002	75.41976301427343
2003	75.50328544919468
2004	74.2414152328159
2005	74.24503231671497
2006	71.10705751047365
2007	67.9613195085569
2008	66.44664510742933
2009	61.6925239050955
2010	65.6683911237436
2011	61.501370727667414
2012	63.959684527369866
2013	61.93022685308549
2014	58.66494555078552
2015	58.675841254795245
2016	61.64243665495358
2017	59.36093887183943
2018	56.40446167256301
2019	57.092224799156156
2020	53.81321614383392