Year	% of total merchandise exports
1982	16.216216216216218
1983	35.483870967741936
1984	23.076923076923077
1985	38.775510204081634
1987	0.5156977236500143
1988	9.286684824583528
1989	52.67755412668554
1990	0.6652449530507653
1991	0.5783737965889084
1992	0.5552325740612648
1993	23.262876964556003
1994	10.7871137096312
1995	4.961669546649982
1996	4.466135818067353
1997	0.12428574297090596
2000	1.1425071733322583
2001	0.45872644442460114
2002	1.056065196129894
2003	0.15119739795770462
2004	1.499075361468306
2005	12.532744402426546
2006	15.093646625024606
2007	10.97602920363318
2008	3.177771968559171
2009	0.5834983680865254
2010	2.253805510500773
2011	1.6919584406991695
2012	24.5738563710061
2013	21.357958256643787
2014	5.201987815991232
2015	0.6947819190903087
2016	0.7211971345839219
2017	1.5784787496672552
2018	2.453949175731506
2019	0.43953976531369304
2020	3.163524366509639