Year	% of total merchandise exports
1960	4.352212376790754
1961	4.255485757150466
1962	4.319166374963647
1963	4.808027102263035
1964	7.05011137334512
1965	7.64940770085529
1966	7.319974014456494
1967	6.93050730329961
1968	7.037931975437006
1969	7.19504697072386
1970	7.080829451988804
1971	7.243815610946509
1972	7.642944089194698
1973	7.478674681320806
1974	7.356554480394796
1975	8.312663264543792
1976	7.687003447468956
1977	7.652330938325706
1978	6.754561907380474
1979	6.947782654932679
1980	7.2184000617910264
1981	7.798065827969151
1982	7.07537893230742
1983	5.918436045887359
1984	6.120131269740772
1985	5.72119330588797
1986	6.004165869260297
1987	6.008584776898327
1988	5.902018043220575
1989	6.405920178121168
1990	6.348207354187535
1991	6.664384298552023
1992	8.376057594759228
1993	9.021595880587455
1994	12.149518255488466
1995	12.37115994700598
1996	12.628474068334286
1997	13.001973082203252
1998	11.949017609036447
1999	10.02537433615949
2000	10.687169637770513
2001	10.549523409470913
2002	10.83958270080149
2003	11.266931924491711
2004	11.023626294712798
2005	11.312631518508837
2006	11.272843868234455
2007	12.472886240422175
2008	13.088363007670702
2009	12.124064794738144
2010	12.433788330008213
2011	13.059282803536712
2012	13.937396535437705
2013	14.2762040309197
2014	13.945147089004353
2015	13.85572192090243
2016	13.967413257807825
2017	14.468658675086235
2018	14.374368844468632
2019	15.024604491224874
2020	15.11554924250286
