Year	% of total merchandise exports
1960	93.93939393939394
1961	100
1962	100
1963	100
1964	100
1965	100
1967	1.528976572133169
1968	1.3597302295224627
1969	2.198300283286119
1971	2.1220409318117515
1972	75.6562163387947
1973	87.67814641699883
1974	86.87387877688415
1975	86.523733679221
1976	83.3334583842916
1977	91.86273433593131
1978	90.41604553462528
1979	91.97836574702247
1980	88.90462844714487
1981	88.68792190362416
1982	95.0093778893145
1983	93.0842470391181
1984	91.086598637746
1985	80.84004975548248
1986	89.72645797288502
1987	83.87796116065857
1988	87.52598252751046
1989	82.10804334726821
1990	82.54158249085293
1991	84.05671434415137
1992	85.37058099472864
1993	86.17344930026128
1994	84.19291506096597
1995	86.89828997774669
1996	87.13743037464165
1997	85.61053829268785
1998	97.90334031280575
1999	79.97888552600773
2000	80.06964995937206
2001	80.71456182787166
2002	75.29057937642682
2003	75.58435937211388
2004	71.9126737905425
2005	70.83106539283392
2006	70.42195874145702
2007	68.65679291223007
2008	73.94294652811733
2009	72.84137174399764
2010	78.21582906531022
2011	75.36298489669967
2012	75.51047067276592
2013	72.2402735586367
2014	73.45146813467125
2015	73.36348455340037
2016	67.84869066090793
2017	60.92074436136855
2018	68.95948213753
2019	64.6532142194646
2020	56.742354862663326