Year	% of total merchandise exports
1961	0.24271844660194172
1976	0.08137698823019981
1977	0.011335184746841984
1981	0.1488095238095238
1991	0.5670509509630213
1993	9.414959141278124E-05
1994	0.020441431907540702
1995	0.2033692541726926
1996	0.41329565185267275
1997	2.0832145097815546
1998	1.4585817814879367
1999	2.290944585138711
2000	0.3427125822112246
2001	0.05977462908461458
2002	3.6133906209552125
2003	0.1569470300275443
2004	0.12857481941914733
2005	0.6995261884091138
2006	0.13134018971015943
2007	0.08057922815665078
2008	1.0671651331168466
2009	0.05233103333061329
2010	0.4075942307101527
2011	0.7289365902230872
2012	0.7136424071499308
2013	0.5044694875323744
2014	0.15468221077255198
2015	0.7257441236189136
2016	0.5225428613725327
2017	0.44842514540980394
2018	0.5314490322312696
2019	0.6669815404694721
2020	0.6958451473861025