Year	% of total merchandise exports
1960	0.20091089592403658
1961	0.18900971435833408
1962	0.3100860983615143
1963	0.33455546976795575
1964	0.3370528221852668
1965	0.28349786054765924
1966	0.37270423474545566
1967	0.49667309392487813
1968	0.5274270766406421
1969	0.5173284317602405
1970	0.6323871169808499
1971	0.7767562066103628
1972	0.7681525261821215
1973	0.6872074952964676
1974	0.6245209030909974
1975	0.9266066862872381
1976	0.9304479940478443
1977	0.8369396705307038
1978	0.7821804511558036
1979	0.7192643603800126
1980	0.8179191896477221
1981	1.5432136579582383
1982	1.479508174542664
1983	1.579568660615335
1984	1.6331384654829135
1985	1.6877488695410479
1986	1.150507662537991
1987	1.480378327611335
1988	1.4097467642309653
1989	1.2032132442779324
1990	1.0247190243234843
1991	0.5495401752622354
1992	2.8497670212980295
1993	3.0969592256592766
1994	5.452196991761043
1995	5.885214913371072
1996	5.797011327152449
1997	5.759034492082271
1998	5.051576319648965
1999	3.825666619869947
2000	4.02742045155904
2001	3.8170694983682267
2002	4.274192198792607
2003	4.9304717150212385
2004	4.882225946133576
2005	5.5303021699373875
2006	5.784886771601228
2007	6.9651631941519465
2008	7.476158114520766
2009	5.312766735045328
2010	5.476409610500882
2011	6.012368756383389
2012	6.660392411024739
2013	6.577213870156361
2014	6.170363321644628
2015	5.130380286104466
2016	5.088719935560753
2017	5.478485803467178
2018	5.365716745670022
2019	5.5983654459526
2020	5.612308057682897