Year	% of total merchandise exports
1981	0.15009858859886266
1982	0.17053084754322784
1983	0.28211910077096947
1984	0.33421767647240413
1985	0.26159496179100034
1986	0.1114118521438961
1987	0.023900264263492624
1988	0.03720191645668
1989	0.008078269069837165
1990	0.09093289557253745
1991	0.4089665406058032
1992	0.5779068886134591
1993	0.4393026839428677
1994	1.1068243268567706
1995	1.9102084242800497
1996	1.4965201043394483
1997	1.1647605279315976
1998	0.809986444352328
1999	0.6155080673741886
2000	0.6640293806356913
2001	0.5545570405006289
2002	0.5447629726173792
2003	0.5074906613529202
2004	0.5209876175352233
2005	0.5497818974412805
2006	0.762306125454412
2007	0.8278058201251431
2008	0.752913061907325
2009	0.6036492712424639
2010	0.7133501332863978
2011	0.7612041728339356
2012	0.7583435112419631
2013	0.7436631586836208
2014	0.6675105115899564
2015	0.5887082859728195
2016	0.5448626981213168
2017	0.6448672262131753
2018	0.5397629803653669
2019	0.5630470723676387
2020	0.5053774122591856