Year	% of total merchandise exports
1960	91.11617312072893
1961	94.1747572815534
1963	94.56521739130434
1965	95.24647887323944
1966	96.875
1967	85.69237364835898
1968	85.6362176129618
1969	79.93066314869074
1970	92.58939302884616
1971	92.8476055976377
1972	90.29284770157146
1973	92.7445043061072
1974	82.29293183775226
1975	82.8054629467158
1976	94.03073661105907
1977	90.22473670699547
1978	93.51812745904373
1979	86.7448948727693
1980	84.33469513925253
1981	88.65470687504586
1982	79.4081663862976
1983	85.1433889651994
1984	82.56872752580907
1985	80.58997970969254
1986	84.13193167294186
1987	90.95717752253402
1988	91.95343776479432
1989	91.69408200416137
1990	94.88973129812845
1991	90.74592608596464
1992	85.12139276613499
1993	81.11208554938966
1994	87.66720823405427
1995	88.03610208396428
1996	87.92206952602608
1997	88.41612958421263
1998	91.75534354646364
1999	90.40399840377819
2000	79.45439914451518
2001	93.47795989479332
2002	91.78487079890948
2003	90.9588099462837
2004	96.81815575889512
2005	93.7526500223883
2006	92.98783543528151
2007	93.26325283577714
2008	88.46766496116693
2009	91.73366932849892
2010	91.21342905670957
2011	92.20890021408343
2012	90.81171008851415
2013	92.28173830320908
2014	86.1570931560426
2015	90.46223815027349
2016	95.08910846512909
2017	86.51441649632828
2018	94.02159625719347
2019	85.84444909194477
2020	89.62837918640035