Year	% of merchandise exports
1970	0.07378441905270847
1971	0.058709322967684906
1972	0.8629008804330459
1973	1.210789766975838
1974	6.901157228924417
1975	7.217930410505737
1976	6.8477866733839265
1977	5.876574084552922
1978	9.35827937512078
1979	44.5872038033034
1980	45.80448879257497
1981	36.6345463812726
1982	60.34375844682334
1983	75.12814161329942
1984	71.81528371687388
1985	57.357591709566606
1986	84.18806205982182
1987	70.14239058476093
1994	25.06512478541381
1995	26.305174235445207
1996	57.041126350278745
2000	16.17177466964097
2001	19.625320167569445
2002	17.460809967413184
2003	17.273028634183742
2004	15.321235997861876
2005	15.227947186380755
2006	13.829381858816625
2007	10.814298196086716
2008	17.08441629603928
2009	15.364414512121602
2010	18.099310240619555
2011	21.44507675539465
2012	21.09294353737605
2013	18.340345053395403
2014	15.09148654084502
2015	22.887706617261617
2016	28.01394631254095
2017	24.867591873158943
2018	22.776394603602483
2019	23.755056209026925
2020	31.160264081212574
2021	41.52245120179101
2022	44.11003962418285