Year	% of total merchandise exports
1981	18.837457971181713
1982	17.11934780595974
1983	18.0522757047516
1984	10.715071820439874
1985	6.593873218827675
1986	4.733122423487482
1987	3.157345879304674
1988	4.440837333499983
1989	6.923823647646151
1990	15.48022711623847
1991	10.989082329201548
1992	18.281203673521087
1993	8.863840708046848
1994	10.884369494573829
1995	9.684206131912575
1996	6.931776871526779
1997	10.947404415620362
1998	1.641944067227815
1999	1.52573928266668
2000	1.7116136214021058
2001	1.65145214383399
2002	4.365121026452583
2003	1.5033777916844542
2004	0.4712485559993546
2005	0.30310892451358085
2006	0.5755050504150421
2007	0.591406750903119
2008	0.5361182114033539
2009	0.5509138085802826
2010	0.5623867325784576
2011	0.8826522883170173
2012	1.2138169287603804
2013	1.6852774974168487
2014	2.127687677956283
2015	4.5224365531202775
2016	5.548719338479361
2017	6.664076159466418
2018	2.0921757168531068
2019	1.0657402798093136
2020	1.215246630718139