Year	% of total merchandise exports
1960	0.40834248079034025
1961	0.2613731101146887
1962	0.2754128001495216
1963	0.36157991704351766
1964	0.10376727570441557
1965	0.179978726575744
1966	0.2029271191136089
1967	0.27950055932561624
1968	0.3150285127212568
1969	0.5127412513342768
1970	0.43811650523434487
1971	0.6582396451844661
1972	0.9799093202354647
1973	1.2034832210398008
1974	0.9495424385065789
1975	0.9878927239826089
1976	0.6321859864839392
1977	1.264206327951829
1978	1.1943730563061021
1979	1.4706317245797802
1980	1.7698455403487232
1981	1.8075156049715408
1982	1.5238696237966787
1983	1.652562806522222
1984	1.0590039772187816
1985	1.0910102542453282
1986	1.0747297296916194
1987	1.2568212037159294
1988	1.576784377306572
1989	0.9420805265712164
1990	1.078454058634053
1991	1.286560176049048
1992	0.8858653503163928
1993	1.3385457147865174
1994	1.6505906502284753
1995	1.6297878402569559
1996	2.178143263107484
1997	1.4593992557697872
1998	1.4209841902371265
1999	1.1712984943323552
2000	1.5346883989756674
2001	1.243900652098537
2002	1.1532451302277495
2003	1.096969024223375
2004	1.1213422778743332
2005	1.078024538454083
2006	1.2498299330960332
2007	1.1103679474483124
2008	0.8722492337269223
2009	0.8397457109850558
2010	1.1229422262401194
2011	1.2969163157970398
2012	1.1091298327050647
2013	0.916136735115827
2014	1.0148150758697088
2015	0.6403924273338228
2016	0.7776611387385013
2017	0.8241755360124862
2018	0.6158164345084964
2019	0.6823139793658143
2020	0.5188513562662911