Year	% of total merchandise exports
1973	0.04416251806648466
1975	0.004110321016071354
1976	0.03131048616645793
1977	0.10316658244904835
1979	0.010359652606315934
1980	0.1845748187211602
1984	0.138941014429584
1985	0.003333123228610702
1986	0.560582803595169
1988	0.0023110227295919084
1989	0.03171770123867112
1990	0.4474231509650764
1991	0.6330627688452043
1992	0.3541148646846405
1993	5.1876147662464245
1994	14.093500771772424
1995	3.3441371010322842
1996	7.126429452911667
1997	7.6751077946165465
1998	2.4700179105009794
1999	3.8913920614112447
2000	0.27591490131248214
2001	0.7534986155897291
2002	0.7344723008117965
2003	4.0363434817020964
2004	0.8117239944766932
2005	3.443154454496095
2006	3.126405565670433
2007	2.0351538493178056
2008	2.813471148207448
2009	6.708117157404869
2010	5.3541532054436
2011	3.5265101772799725
2012	7.45460112259236
2013	4.556292316932467
2014	9.472348299938558
2015	7.556654530940571
2016	36.94855058001739
2017	18.27967493928479
2018	4.942048724293402
2019	16.190715288821472
2020	6.897755797560986