Year	% of total merchandise exports
1972	0.26820184494004545
1981	0.542327152919027
1982	1.1834335510570133
1983	2.631554398828347
1984	0.926416846199803
1985	0.4176558835952634
1986	1.8864450828691433
1987	1.9860492180245635
1988	1.722881367440892
1989	0.2864053956097638
2004	0.1579246394569953
2005	1.5819366775250685
2006	0.7433822419048467
2007	0.7244062760488051
2008	0.4032039307563456
2009	0.3375380606277895
2010	1.1761202801994879
2011	0.880256434114777
2012	0.5845118158639564
2013	0.7383738782731442
2014	0.378891216092381
2015	0.13280946258151016
2016	0.3118056057321794
2017	0.40380149151386613
2018	0.452495275634885
2019	0.31485927385283247
2020	0.21211789521880653