Year	% of total merchandise exports
1994	0.87006199505645
1995	1.164918651908915
1996	1.1504721852782107
1997	0.9880852616001903
1998	2.7354136874271924
1999	1.080436433849889
2000	1.1863712025014497
2001	1.3589909839782346
2002	1.2979402472478148
2003	1.1477781869952954
2004	1.911378328935653
2005	3.643585591591762
2006	3.871941831192003
2007	3.3856281162116892
2008	3.5201805111923834
2009	5.379154365169499
2010	4.073497140652164
2011	3.775639465912501
2012	4.39297442036888
2013	3.628090213346527
2014	3.7756058237673598
2015	3.8848082459461213
2016	4.3089734556309
2017	3.936084072418142
2018	3.0674188028873695
2019	2.32870949721434
2020	2.564190158226989