Year	% of total merchandise exports
1960	0.6345702855566285
1961	0.5626670417780278
1962	0.8175500749420903
1963	0.24456521739130438
1964	0.22005658597925182
1965	0.39207375225177493
1966	0.35065349059611095
1967	0.397571201387885
1968	0.09443227317367983
1969	0.14348867389033668
1970	0.13974486102917488
1971	0.22766020438373505
1972	0.27451001014950804
1973	0.3194943923693572
1974	0.5064428024207258
1975	0.6939791701969577
1976	0.7111397375258297
1977	0.29021554815611367
1978	0.47284063471345567
1979	0.4464999272219949
1980	0.45576690915989154
1981	0.794675990602606
1982	0.7696722487547912
1983	0.9328568169720934
1984	0.9293812093377145
1985	0.770502120108533
1986	0.7869430433786166
1987	0.6482434099693812
1988	0.40747099660862807
1989	0.46120249899159915
1990	0.35175987506903916
1991	0.2978934298169479
1992	0.3068099087228042
1993	0.35070655464776235
1994	0.37425527606996056
1995	0.350784035119149
1996	0.3873379620818383
1997	0.3017465259923954
1998	0.2728182701689724
1999	0.24976184964407666
2000	0.2557979491728853
2001	0.2504789317990842
2002	0.2964642055009604
2003	0.2701454670575884
2004	0.3673766363073755
2005	0.47421023443748506
2006	0.4201632892852798
2007	0.5007559815145882
2008	0.49928348846348575
2009	0.6019246249824142
2010	0.7245386567739297
2011	0.7192331191819396
2012	0.6731251968823715
2013	0.584216155959924
2014	0.5910756222017484
2015	0.6458772425984773
2016	0.6484780026967284
2017	0.6199939232813092
2018	0.6170617881841305
2019	0.6234991778886168
2020	0.5614074211357751