Year	% of total merchandise exports
1960	82.16480764853176
1961	83.21829163071614
1962	86.18238021638331
1963	85.66760037348273
1964	86.7749961125797
1965	85.62495657611339
1966	86.51195589460863
1967	85.93731996773822
1968	86.24393266549623
1969	87.08734338115126
1970	90.05324491399706
1971	88.1987262141992
1972	87.12283841101261
1973	83.70366259948308
1974	84.13126219286725
1975	84.13991951654613
1976	85.63455245173016
1977	82.21038182644621
1978	79.47779943566779
1979	89.18642091268718
1980	90.34447531807108
1981	91.3097797775654
1982	91.72659614261732
1983	92.6903917560182
1984	94.214418701415
1985	92.50997825875329
1986	90.78608491767079
1987	91.15521061951632
1988	92.08321433671284
1989	93.03628970464914
1990	93.64508427134606
1991	90.71909267549466
1992	92.3337593327463
1993	93.53740381582918
1994	93.17622052232544
1995	92.90306976659102
1996	93.18267520600523
1997	95.48082466914711
1998	95.81323971175007
1999	95.8902253874895
2000	97.07304022468766
2001	95.8758144690878
2002	95.25701903533438
2003	95.0547273904242
2004	95.58648053822387
2005	95.70128232323233
2006	88.95609559481107
2007	94.96821333142685
2008	95.1748641385855
2009	93.2905653770402
2010	93.51651954403876
2011	93.90417306322323
2012	93.88402738439756
2013	93.2309482078031
2014	92.17527407603629
2015	91.36822110937969
2016	90.74277851326842
2017	92.39289493521909
2018	92.70694008701209
2019	89.97850814572048
2020	84.94908129469685