Year	% of total merchandise exports
1960	6.131937941359434
1961	5.248376647881147
1962	5.708588695700898
1963	5.8237779427537815
1964	7.138381387725564
1965	7.869428342967345
1966	7.889294002781705
1967	7.927412982462714
1968	8.937815225189292
1969	9.45180587154094
1970	9.443894640781538
1971	11.20859606414909
1972	9.766947640214426
1973	10.368127915636324
1974	11.653814821958534
1975	13.309329773829182
1976	12.715982832800677
1977	12.443944610202095
1978	11.861619175734257
1979	12.210644169601476
1980	12.574036668475458
1981	12.52368037572734
1982	12.032174504002972
1983	9.621964138923508
1984	9.719629031654211
1985	9.31438153505588
1986	10.459539157091648
1987	9.228849834896522
1988	9.751399280811533
1989	10.882905565792866
1990	10.695561375795373
1991	10.842002964913029
1992	12.674126875452373
1993	14.378494881873708
1994	15.369872230357428
1995	15.109845903885578
1996	14.381748910836265
1997	14.866241197846847
1998	14.775389017955797
1999	11.51457842309003
2000	12.145195048394923
2001	11.963815107677782
2002	11.22720858077132
2003	11.323676738875806
2004	12.319681425054572
2005	12.627483581614712
2006	13.113171859713846
2007	13.709625568782705
2008	14.808372082030694
2009	14.198687141200075
2010	14.744388047008975
2011	14.597940920163566
2012	14.054758986282204
2013	14.028939095790255
2014	13.0576086554209
2015	12.61452464280329
2016	12.29477014727932
2017	12.407545008782213
2018	11.78428442966216
2019	10.986391630521146
2020	10.326085727923369