Year	% of total merchandise exports
1963	87.35511064278188
1964	85.64877462035784
1965	83.89415223783078
1966	76.60609529260266
1967	78.79020979020979
1968	77.63445128001588
1969	72.33764691914995
1970	41.983189701032025
1971	75.54702293288449
1972	93.8415464198203
1973	90.79222966035566
1974	92.00769938907023
1975	81.26479741501258
1976	70.43615691269785
1977	74.96764998218404
1978	52.981569874091214
1979	69.91415560929909
1981	96.94076038690336
1982	66.85084074742772
1983	82.03041864569545
1984	80.46396990465483
1985	74.57728731140297
1986	86.28452352674427
1987	86.2915966471115
1988	81.70885991068116
1989	77.50190477342267
1990	81.37703116294335
1991	91.93181196300553
1992	91.61592189104643
1993	88.02256314939515
1994	89.38947840120991
1995	94.76311238997016
1996	94.1290111329404
1997	91.84957511178658
1998	82.27142719219907
1999	95.06120155190186
2000	95.78852386371383
2001	94.88807239918661
2002	93.74165222574071
2003	90.98501308656236
2004	91.33548369999443
2005	89.26793285064021
2006	80.74434834506185
2007	79.04192967592721
2008	77.07125992436549
2009	91.2659468164716
2010	87.2290710759442
2011	83.58325399859736
2012	83.6030469003563
2013	78.0941763158667
2014	81.80744016567833
2015	87.77698435590295
2016	89.46708984828092
2017	88.11543372001444
2018	86.32070612556194
2019	85.81152652244721
2020	78.76459059945905