Year	% of total merchandise exports
1985	0.9986609534011783
1986	0.30304468544578655
1987	0.24822189447998447
1988	0.004282313450717353
1990	0.027221066769374604
1991	0.01781635027264956
1992	0.11711915845590001
1993	0.28471000628015636
1994	0.8396477762266173
1995	0.5339272952510574
1996	0.7854013854020332
1997	1.2801754485956027
1998	1.419562229815662
1999	3.0521963839872
2000	1.5906376621284857
2001	1.2260841782900676
2002	0.8812941147029331
2003	2.221958681247086
2004	2.847522885856172
2005	25.609062982095175
2006	23.041327156340195
2007	7.936816079387421
2008	10.79519758328848
2009	23.470964619246622
2010	41.43928905752941
2011	37.03153379030782
2012	44.336746908829795
2013	50.757829990015466
2014	35.30597295913512
2015	33.395406842912564
2016	38.127239458735126
2017	36.49689995493857
2018	32.61841548783814
2019	39.08870010144664
2020	44.085959470702576