Year	% of merchandise exports
1981	28.072545847841035
1982	25.03541636658737
1983	28.31664887893724
1986	45.47836260628331
1987	56.8050703054025
1993	38.831298740476036
1994	31.388715125477745
1995	41.44271392017375
1996	28.464075456653376
1997	34.00040315254951
1999	70.50422003368185
2000	72.99633854586348
2001	73.10023575641536
2002	69.74008502218373
2003	76.7208011470377
2004	68.98300440108159
2005	95.46535394209758
2006	92.22384706189911
2007	89.76586921910484
2008	88.55370636735927
2009	89.24440985828828
2010	87.2321527867419
2011	87.26099246499143
2012	87.81375900664868
2013	87.98840999221781
2014	85.81281527825084
2015	81.99296462291005
2016	85.58098261818608
2017	86.36709674463263