Year	% of total merchandise exports
1962	0.21261516654854712
1963	0.44510385756676557
1964	0.7371794871794871
1965	0.35153797865662273
1966	0.6733668341708543
1967	0.6282900322635422
1968	0.5145246007074713
1969	0.37375415282392027
1970	0.6383158606695976
1971	0.8939169139465875
1972	1.1697426566155447
1973	2.2871155819132696
1974	7.941119504164247
1975	7.304595910738001
1976	4.806742925948225
1977	3.972580281574687
1978	3.703554160315746
1979	2.8884412613150303
1980	4.578676034490624
1981	8.709246632510242
1982	8.709246632490874
1983	8.709246632815743
1984	8.709246632193562
1985	8.709246632935525
1986	5.158465972822007
1987	5.101642646168468
1988	4.538548531648652
1989	1.781463945861173
1990	6.963017373820872
1991	5.06961827060845
1992	7.342086810164256
1993	6.681929790611413
1994	7.985137858553375
1995	8.660668466350845
1996	8.59665156264331
1997	9.604398875606508
1998	8.039329374359763
1999	7.40621288455466
2000	16.801981646625062
2001	19.761939805165238
2002	20.174185479838293
2003	17.90487427673201
2004	16.934483975701056
2005	14.205587307340078
2006	13.488214677520954
2007	11.331590550518165
2008	9.724198124662006
2009	17.850669786802577
2010	10.116540083693645
2011	12.554316224488321
2012	13.978564050167341
2013	8.942391541818374
2014	7.4313351085919725
2015	16.47367013178485
2016	12.162075451458392
2017	12.170304965298797
2018	22.213009258143305
2019	23.21206325119435
2020	25.617992075236508