Year	% of total merchandise exports
1960	94.6372239747634
1961	98.95287958115183
1962	86.93284936479128
1963	77.48267898383371
1964	87.88659793814433
1965	81.97199533255542
1966	85.54797270172621
1967	89.63681903569191
1968	92.54781270608925
1969	91.85672984259557
1970	91.99524940617577
1971	91.00223546944859
1972	91.06594621146998
1973	91.62561576354679
1974	89.34536336363229
1975	84.5456333595594
1976	90.41532718033807
1977	89.91351598809725
1978	88.86083186430987
1979	87.37180936672829
1980	80.76929693278973
1981	79.6525704614372
1982	81.1894388168836
1983	83.65366138851071
1984	83.97125016661369
1985	84.43536220209896
1986	88.06115118250524
1987	90.00982764633154
1988	89.38182405229274
1989	87.52802634274117
1990	80.12511356076907
1991	78.8542581643475
1992	76.1564788510743
1993	68.77318914887667
1994	68.32501331860065
1995	69.14597656517667
1996	63.926390169863254
1997	62.99193588676103
1998	69.24196875343466
1999	70.5993690851735
2000	70.47820192125637
2001	67.56648691572002
2002	65.70993653122858
2003	62.436566682668236
2004	61.01863445742774
2005	58.11790404970395
2006	57.31866145159653
2007	54.80850077933693
2008	52.77642693597105
2009	50.1642639247963
2010	48.4524735709201
2011	48.442364615370764
2012	48.448763992918025
2013	46.35076303892558
2014	47.2096114325129
2015	47.837164899944376
2016	47.40944875417711
2017	46.35962464369976
2018	46.27397904600897
2019	46.121400584590546
2020	46.537233222860955