Year	% of total merchandise exports
1960	87.75344687753447
1961	87.50934928945401
1962	87.813134732566
1963	88.31804281345566
1964	90.39686428221461
1965	89.14141414141415
1966	89.19655015887426
1967	88.87949260042284
1968	89.7799328608728
1969	89.72829627726443
1970	90.85243013322689
1971	89.40329016382192
1972	89.91392278121344
1973	89.07706981354379
1974	92.09123328767168
1981	82.69211737175242
1982	81.11752762437362
1983	83.46051946349569
1984	91.59377829798595
1985	86.59086262556728
1986	84.29386129321338
1987	85.6138249489337
1988	78.76951544469246
1989	80.59691448748652
1990	83.33203912760993
1991	89.68171630927232
1992	88.00282109711335
1993	92.71938037193343
1994	92.2303417053574
1995	89.31999395322433
1996	85.63475451449095
1997	84.43326007783246
1998	93.82542152635398
1999	90.09470705573669
2000	73.80327748164109
2001	75.82596822990335
2002	74.07537277517704
2003	71.49442343486079
2004	66.56548912938922
2005	56.870848862676716
2006	51.590151103505356
2007	26.197312344899853
2008	29.815320413530433
2009	43.4345999662213
2010	40.549825039039476
2011	42.59812061900145
2012	31.231475440624727
2013	34.17502667841346
2014	35.05862586554231
2015	39.18296062525884
2016	29.699200033877922
2017	20.95597208303509
2018	22.52682493467235
2019	24.00783876633541
2020	22.70622499480141