Year	% of total merchandise exports
1960	73.34235453315291
1961	77.6595744680851
1962	78
1963	76.30700778642937
1964	81.41086749285034
1965	86.50519031141869
1966	85.08137432188066
1967	83.86138613861385
1968	83.15889628924833
1969	82.47035655926594
1970	85.15591262048905
1971	82.50652741514361
1972	78.92616242467848
1973	77.60458094742322
1974	75.95008848495756
1975	69.33089993916515
1976	78.03889875855783
1977	72.99317663530903
1978	79.13387498815743
1979	77.9449101337883
1980	67.97698313289321
1981	70.60511900240375
1982	75.51155619482977
1983	73.18152222081932
1984	73.17197629234964
1985	73.58881592581847
1986	73.58881592985848
1987	74.6948299815212
1988	78.23448439539575
1989	76.89394270337331
1990	74.56806153699732
1991	87.05101154252462
1992	86.92204815132669
1993	79.63715673639338
1994	82.8423109259244
1995	79.85228774481376
1996	79.15528540934656
1997	81.73151063348718
1998	83.75628383870543
1999	70.70808889934357
2000	81.72123150742281
2001	39.73982089897143
2002	72.75860798477368
2003	63.6359835730692
2004	76.72961302356674
2005	71.47206616562666
2006	73.52963727049278
2007	75.8410415111685
2008	77.39620006160622
2009	60.66493087792944
2010	63.85393486102075
2011	67.63524125955087
2012	58.856331809153296
2013	43.55348767607245
2014	44.38513883621027
2015	49.13007949275484
2016	42.23973270477671
2017	46.28890313018016
2018	44.02279044056535
2019	46.42305854995421
2020	49.29227506249691