Year	% of total merchandise exports
1960	23.246492985971944
1961	12.359550561797752
1962	13.582342954159593
1963	18.544935805991443
1964	25.43103448275862
1965	20.863309352517987
1966	20.391061452513966
1967	24.56819311217191
1968	29.934416642299176
1969	26.07346978652728
1970	23.00244706883711
1971	9.972972972972972
1972	28.735161028460283
1973	31.381747748654227
1974	27.514638906961615
1975	24.866473065582735
1976	19.951471667126597
1977	19.294110884373296
1978	29.212426994010908
1979	21.831201222946337
1980	15.936039279673784
1981	16.37019543437959
1982	33.00007954103444
1983	17.395835600673653
1984	19.994399691451303
1985	17.04970107465538
1986	46.32786653612638
1987	35.414141154560916
1988	16.103853690000673
1989	10.097430165290906
1990	14.197327824484438
1991	7.898664373806924
1992	6.255845928079608
1993	1.6963637099590039
1994	11.56144203094008
1995	13.061348930585828
1996	23.57170376227345
1997	24.026956945318272
1998	31.55476831534622
1999	46.59468775722337
2000	68.3792879489609
2001	57.05439385240657
2002	57.63821342888779
2003	78.29831654254512
2004	71.60224247968216
2005	76.74788599137335
2006	74.5614069184624
2007	76.24926042732967
2008	73.38336029404013
2009	66.21558595229335
2010	55.78113490345792
2011	66.80593514637124
2012	88.65620590930861
2013	80.5730573034841
2014	84.00145500325007
2015	72.81321271198622
2016	82.70946054478992
2017	83.05229280303827
2018	84.28908269409864
2019	82.01717367878986
2020	79.5020741494518