Year	% of total merchandise exports
1965	0.07222824124232576
1966	0.0643915003219575
1973	0.06390073311568356
1974	0.13602750228773525
1975	0.6792032034061533
1989	0.1416182227440561
1990	0.043093597994502165
1991	0.0067648628553802536
1992	1.1740755332805353
1993	2.012136822535256
1994	1.460259860101605
1995	2.4685920956646408
1996	2.1271538005437782
1998	1.9158001411770778
1999	2.662589226021752
2000	2.0305675568304995
2001	2.711258898750726
2002	3.3373500305104136
2003	2.668589602279423
2004	2.4306541688024703
2005	1.901323406336169
2006	0.6643171050191772
2007	1.4399276414912443
2008	1.2138307558229382
2009	0.9477320162670478
2010	1.3782678067103256
2011	1.2293848882264162
2012	1.174492671996873
2013	1.0233980072019984
2014	1.6781687090460449
2015	2.035941362625584
2016	1.4620679432512016
2017	1.6274326588619799
2018	1.7276119465614919
2019	1.6447857526145186
2020	1.6460898022380543