Year	% of total merchandise exports
1960	8.296730112249879
1961	6.474416517055655
1962	7.042698231083986
1963	4.776795054430318
1964	3.7588260642138915
1965	3.5680603816492136
1966	2.9772995391171206
1967	3.1093747577385513
1968	2.707303704079128
1969	2.4043883480889336
1970	2.382805414764712
1971	2.966764807299541
1972	2.999390789587419
1973	2.722216397086936
1974	2.8440094095632253
1975	3.5748820263580097
1976	2.4589091724697387
1977	2.698587548762114
1978	2.8595104608903155
1979	2.9469508558890065
1980	2.7879851023086872
1981	3.797002948850666
1982	3.7473807017996346
1983	3.8416504029362377
1984	3.8626483889633807
1985	2.2512414110707946
1986	2.186732246043644
1987	2.4412296953506667
1988	3.197262898926525
1989	4.962821901966015
1990	5.640505474382658
1991	5.7079222615775835
1992	5.796098087656296
1993	6.168669101067604
1994	7.049604738213404
1995	6.1028894546325105
1996	3.226450642878443
1997	4.125632132821163
1998	5.821818218060117
1999	4.304061124484542
2000	4.031839477647458
2001	4.742048337669556
2002	4.899404981105235
2003	6.630628471352294
2004	8.998944191730757
2005	3.222850593436038
2006	6.086360621755123
2007	12.605536725283622
2008	21.215255130323577
2009	21.138906531310894
2010	15.372263323251916
2011	5.080877376505106
2012	3.7316696489070296
2013	2.257673602685754
2014	2.025847287585315
2015	2.307731481453233
2016	2.235220028191659
2017	2.5148482420363685
2018	2.1531085522253446
2019	3.1033295441603954
2020	3.283036152210635