Year	% of total merchandise exports
1960	10.322896281800391
1961	8.75498635313878
1962	7.512362114872564
1963	7.908448083364347
1964	7.8087529976019185
1965	8.448172558418214
1966	8.569562377531026
1967	9.263565891472867
1968	9.59935155164428
1969	7.007076453448037
1970	7.517369063979223
1971	9.983778038820832
1972	6.645449162578244
1973	9.906894026571818
1974	8.714748795097544
1975	17.526972948216443
1976	14.493963332836488
1977	13.798577597155196
1978	17.192583036098252
1979	18.310694616774416
1980	11.895248849127075
1981	16.119771693295263
1982	9.423308847714067
1983	8.899769920500356
1984	17.202834360956583
1985	12.541938427678021
1986	12.603713316031143
1987	12.946740474015156
1988	11.849939935807557
1989	14.140671383673492
1990	9.913299340855225
1991	12.75445606950324
1992	6.633987303263727
1993	5.295466582770619
1994	4.635885756786184
1995	6.019625332580871
1996	5.264159510791298
1997	5.366304306823348
1998	4.4697493887702135
1999	4.155397592859384
2000	2.01092885935653
2001	2.284444418161178
2002	1.7421274688934514
2003	1.2792819434152265
2004	1.637355073344748
2005	1.803957902082875
2006	1.8253893660545095
2007	3.1482143825522795
2008	4.050568398618445
2009	2.8821040882552587
2010	2.204316809856638
2011	2.6839295810172064
2012	3.546136077944658
2013	2.479431251219862
2014	1.7756020396298737
2015	0.7999857154720331
2016	0.7368465606422737
2017	0.7181218484518591
2018	1.058307526259406
2019	0.8716183145294752
2020	0.9023327537394867