Year	% of total merchandise exports
1982	0.19550342131182796
1984	0.11778563015707386
1988	0.027862634152026694
1989	1.250929574777388
1990	26.159480276229157
1991	84.10410293357677
1992	2.507347106458708
1993	12.713971829072307
1994	4.713775131922701
1995	11.22316142270686
1996	3.4415315421601553
1997	7.986618163628491
1998	21.065820195228834
1999	5.471895071198577
2000	14.722427900223789
2001	18.40257090078003
2002	9.351866337288058
2003	14.588679451620825
2004	17.77907916476963
2005	18.954456961697815
2006	39.29866965838313
2007	23.88495651200525
2008	5.494640452873597
2009	2.9091651336812694
2010	18.393791848650707
2011	3.855697167573271
2012	11.910296946508089
2013	12.240867091076916
2014	3.8368866534808546
2015	5.10741863302233
2016	23.70656896345839
2017	3.4756663510107755
2018	0.8810435733276873
2019	7.804241070694379
2020	6.612586476346848