Year	% of total merchandise exports
1960	3.0837994406711946
1961	2.8509029424887866
1962	2.458512599877074
1963	2.191008958612023
1964	2.24013870827915
1965	1.8643507811393778
1966	1.9952233315037604
1967	1.9538066253555186
1968	1.8831238973103372
1969	1.8645021297114845
1970	1.6437097474029896
1971	1.634941778026039
1972	1.5315122044241036
1973	1.6292534112493298
1974	1.8945719614320364
1975	1.696487967269374
1976	1.1776319725584827
1977	1.3786731071833718
1978	1.2621808633748075
1979	1.2077313653646515
1980	1.0974528972025843
1981	1.179814361514796
1982	0.9754339074521824
1983	0.7193054597958799
1984	0.7777409476427531
1985	0.7635882635882637
1986	0.8476091832400654
1987	0.8503707892938975
1988	0.6979882713891802
1989	0.7759005829628732
1990	0.7328902722643156
1991	0.7526364418892098
1992	0.8915866745836221
1993	1.3227295631501343
1994	1.0414415233499446
1995	1.1299541749767363
1996	1.0322513636655732
1997	1.1830115866567055
1998	1.168386768991556
1999	0.8654634731300505
2000	0.8418185019410038
2001	0.862020663311708
2002	0.8563889933369941
2003	0.780602670806614
2004	0.7665876336040146
2005	0.8553064302398928
2006	0.9627792529054038
2007	1.0536887836441737
2008	1.1750993888547014
2009	1.1279503970920706
2010	1.378746005728364
2011	1.370011795426976
2012	1.6431188694001693
2013	1.5704122875721618
2014	1.6408513763159733
2015	1.614388733298039
2016	1.5789356731264654
2017	1.42394554039858
2018	1.4245519639520132
2019	1.394250980812762
2020	1.232719174035614