Year	% of merchandise exports
1962	7.5625948232792
1963	3.4904139165607617
1964	3.1794887539743266
1965	2.669328855341501
1966	2.862257380706507
1967	1.495412523528758
1968	1.969123025886756
1970	1.0507200601757103
1971	1.209442152106328
1972	4.968172515649312
1973	32.99529011420391
1974	69.26362680350007
1975	73.39043445504053
1976	75.28312916450236
1977	54.51643338001561
1978	62.907066503583906
1979	85.16284606815901
1980	89.58051055486892
1983	87.63897471433879
1984	91.75334532991576
1985	93.25504111086335
1986	89.09531825835249
1993	94.3894815890217
1994	83.37777565173661
1995	87.64076953208273
2007	87.02461704255585
2008	84.09612439725814
2009	70.65930785343897
2010	67.7204549838107
2011	77.66613705955614
2012	78.89767752560334
2013	75.70957949990077
2014	46.172586696214076
2015	31.258448217690244
2016	19.490612788240114
2017	44.55651607081058
2018	82.21740824513701
2019	83.93941743644149
2020	75.11219662748222
2021	55.09042986095376