Year	% of total merchandise exports
1960	10.034800329602248
1961	9.261326694337244
1962	9.938994971927558
1963	8.142815425741682
1964	7.1138346209332735
1965	7.0757304424381715
1966	6.2309184705163005
1967	5.472270054848597
1968	4.196483998909735
1969	4.849471075727001
1970	5.653608299364285
1971	7.748538748150873
1972	8.396203541185997
1973	7.341974151527446
1974	6.84241822551614
1975	6.679612948084669
1976	5.850515617434386
1977	6.08431873578959
1978	5.687450722866949
1979	6.23064482893804
1980	5.798974481078115
1981	6.921914040740437
1982	6.346282816563926
1983	6.196244403211484
1984	6.089195726659543
1985	6.629464745164484
1986	5.590661977047275
1987	5.197816730562716
1988	6.050572083861042
1989	6.446497087542468
1990	7.505749912018503
1991	8.049568648283065
1992	7.724947162760065
1993	12.579151214313612
1994	9.660530856860783
1995	12.664557874514623
1996	12.606240106242373
1997	12.349150873128007
1998	10.990673178108269
1999	13.403389918017512
2000	14.625273937779331
2001	13.335686342815784
2002	13.878276730487315
2003	14.92422354899808
2004	17.646378924733554
2005	18.101597194794532
2006	13.843380779423898
2007	11.303255521503704
2008	11.681950052816775
2009	12.011848931826199
2010	13.00441978046239
2011	14.070861861504122
2012	17.74035188811492
2013	16.55610561271674
2014	16.37533573034554
2015	16.29626500907399
2016	16.35085755181299
2017	17.915170918104135
2018	19.513126490530748
2019	18.196482609929564
2020	17.828509885354503