Year	% of total merchandise exports
1966	1.6666666666666667
1967	1.2539184952978055
1984	0.5456355260701862
1985	0.6453501988918176
1986	1.469837850035437
1987	2.0515762444072916
1988	2.197176356005299
1989	3.2459716084595205
1990	7.424556562426188
1991	2.6941713036119497
1992	0.430717603036579
1993	0.8602878767188441
1994	0.837945307822054
1995	3.57023654224389
1996	1.0841222311001455
1997	2.1981053837721545
1998	1.7653818924184579
1999	5.464289273770822
2000	5.546145120797292
2001	1.950479036565041
2002	3.3232574863882007
2003	4.467374206259553
2004	6.11026447677836
2005	7.255732805501573
2006	5.175063057044943
2007	9.7794159565482
2008	4.536288408380331
2009	13.407573549810522
2010	4.073397744129325
2011	6.359079629908952
2012	1.393770264278214
2013	6.972984974173009
2014	12.629757018994672
2015	9.142368535208725
2016	7.981640976513284
2017	8.694254747797729
2018	8.355687545561896
2019	12.737366639514766
2020	12.320588681570424