Year	% of total merchandise exports
1960	7.243963363863447
1961	8.695652173913043
1962	11.53169014084507
1963	8.87728459530026
1964	4.626143087681549
1965	4.759238521836506
1966	2.876931273308471
1967	4.143947655398037
1968	17.611907007867064
1969	15.117476779910849
1970	15.597812266066843
1971	12.665040238747343
1972	9.138679944909418
1973	7.8214054430228845
1974	5.9423804383392405
1975	4.906698306547298
1976	2.7693570709438
1977	1.6209030467383687
1978	2.195163895454898
1979	5.900826922522834
1980	2.5076677708256656
1981	2.426441410497838
1982	0.8280464379269018
1983	1.8550052615311423
1984	3.5100878190211486
1985	1.1100737347499854
1986	0.35425417600444264
1987	0.3607566594848631
1988	0.4669649161283119
1989	1.4358200112849377
1990	2.2131041649869547
1991	1.5083660055045727
1992	3.4015839111219845
1993	6.241541372206753
1994	1.4126733499967545
1995	1.2559382772549021
1996	0.9761582245315193
1997	2.4179590009163148
1998	1.7407173674362342
1999	3.0765051056597366
2000	30.066244277383607
2001	29.191864478341508
2002	33.293619194242005
2003	35.51748279709473
2004	32.017536780808435
2005	34.73083280689893
2006	32.32151475547454
2007	44.03684745144014
2008	46.018594195017634
2009	49.488031062678864
2010	51.86782327220624
2011	48.33683650957848
2012	54.78000344018801
2013	51.85704764170609
2014	47.76286531328126
2015	51.258922386004656
2016	47.44795034988771
2017	49.59799061569644
2018	49.55918319445499
2019	36.78653197309603
2020	33.1907637679668