Year	% of total merchandise exports
1960	0.9456264775413712
1963	2.152317880794702
1964	2.083333333333333
1965	1.0617760617760617
1966	1.857282502443793
1967	1.847816612917284
1968	1.7719568567026194
1969	1.8187461204220983
1970	3.219645293315143
1971	3.5778688524590168
1972	2.8580295677688747
1973	2.174699191268328
1981	3.1813203699234136
1982	2.1491021362884815
1983	2.386896344624961
1984	2.0514497668885023
1985	2.4622928806381337
1986	2.4808009055712037
1987	2.6475791458948716
1988	0.8034376307778429
1989	1.3505242560238073
1990	1.562785768346072
1991	1.0655830803102702
1992	1.3305021727371718
1993	1.458765108412971
1994	1.5019118995765797
1995	3.598618194876945
1996	2.968937602151838
1997	4.643611204043937
1998	5.0289906684547026
1999	5.390504907177486
2000	5.308695294479395
2001	4.689236719342299
2002	5.446389584027136
2003	5.63538281953179
2004	6.789595600844963
2005	8.290295150601462
2006	7.5248459220113775
2007	9.29563966882002
2008	8.98113990537465
2009	9.978556899162323
2010	17.15337751290445
2011	21.026762271231945
2012	23.481247080014704
2013	17.661693699541196
2014	17.10718212000148
2015	15.252522329321799
2016	23.808963035425133
2017	14.988358783241186
2018	12.667059228266433
2019	7.744369990682174
2020	7.658869272791437