Year	% of merchandise exports
1970	4.72292849690463
1971	4.447939561143477
1972	5.439764056068691
1973	6.443510608461878
1974	4.968912485953935
1975	7.964125442430678
1976	9.507709597423803
1977	10.85215966895554
1978	10.628556209320433
1979	9.490690442525725
1980	10.38389251926241
1981	15.029320329789464
1982	22.453870703261483
1983	19.161357792845685
1984	15.8293454692486
1986	87.98219632962847
1987	82.55611942062745
1988	86.77699325067829
1989	85.0180178144774
1990	6.382437156399819
1991	18.836177040176786
1992	4.793789070648476
1993	4.276675734407685
1994	5.492579368844998
1995	4.734203136318543
1996	3.9393158890642073
1997	4.210595546943666
1998	9.886722820170837
1999	8.502997369250252
2000	4.480358463271941
2001	5.219895091552685
2002	5.621229128355849
2003	4.682231411342495
2004	4.099691407803359
2006	3.1593534637158265
2007	3.291907406811686
2008	3.1683263012807217
2009	6.218888371211031
2010	6.561713036056018
2011	4.61701296902327
2013	5.138984440096247
2014	4.141764410341212
2015	6.094160673006929
2016	5.768729598143536
2017	5.050753141727228
2018	7.810540256394494
2019	4.719367208206162
2020	5.873355149298405
2021	4.603904047109091
2022	3.3923459226824986