Year	% of total merchandise exports
1966	0.022714366837024418
1972	0.04091461703918452
1973	0.1844838515677064
1975	1.047104656273897
1976	0.08228248697599688
1980	0.08748719699556162
1981	0.11892712550607289
1987	0.981987327960797
1988	0.6145461118140233
1989	0.48717979714945414
1990	0.22010440554524816
1991	0.19287572190627342
1992	0.183074181658408
1993	0.22310078059283733
1994	0.0290604798158728
1995	0.08462026655383964
1996	0.8836155741860242
1997	0.419809982477735
1998	0.31593318879668686
1999	0.36631111755680557
2000	0.8215229476566747
2001	0.6748734410191763
2002	1.114568692542015
2003	1.1387038550895219
2004	1.3075917925334017
2005	1.6525389525370744
2006	1.6797287724293115
2007	1.7791321360393062
2008	1.6434679830297665
2009	1.5021504506849839
2010	1.266514150771595
2011	1.4412809970265692
2012	1.597762615928322
2013	2.0298167697488596
2014	2.1656261701361794
2015	1.9575122466508266
2016	1.6589829051304972
2017	2.1075542439751502
2018	2.0726260674691224
2019	1.7491098967075451
2020	1.7170327247024344