Year	% of merchandise exports
1962	0
1963	0.06600306455772054
1964	1.0099229835984007
1965	1.029941346641382
1966	0.5610362754838579
1967	0.6830413851171436
1968	0.5461694282710006
1969	0.6879289405148926
1970	0.1536813215430802
1971	0.8047359945119797
1972	0.8078053725426915
1973	0.6826191632459002
1974	1.933744619663472
1975	2.7905098311212972
1976	2.1515789241928265
1977	1.6084488579458145
1978	0.6497243665405465
1979	0.9511915262013282
1980	0.3915701533932377
1981	12.306161777130617
1982	9.774892434759323
1983	20.845601611565577
1984	3.9024582010238187
1992	5.395798603020982
1996	3.357768400954809
1997	3.0663650072537227
1998	3.2676819676527256
1999	4.4156374202377915
2000	4.895274745006124
2001	7.9818414071920865
2003	0.04818033187879044
2004	2.2589148892382696
2005	2.4202666722204222
2006	0.44941390418748384
2007	0.758742699996961
2008	1.3290514376561435
2009	1.7532908176451436
2010	0.11429415951832397
2011	40.421939649671785
2012	28.9638835969169
2013	24.744417502927178
2014	29.74215541129133
2015	21.70196217801476
2016	12.982329723494878
2017	25.34560871682293
2018	30.60561387547785
2019	31.70226179953336
2021	26.66418370087986
2022	31.001465361614418
2023	24.529816622595543