Year	% of total merchandise exports
1960	3.965702036441586
1961	4.870466321243523
1962	2.910958904109589
1963	4.160246533127888
1964	6.322282189668465
1965	8.80503144654088
1966	7.672487832808474
1967	6.7240179644506295
1968	5.922434550950356
1969	8.068748360010495
1970	7.104136947218259
1971	8.825021912626287
1972	7.374721348520476
1973	12.987329892069452
1974	9.513429834785008
1975	16.335776718739982
1976	19.442926929684965
1977	14.500906306644165
1978	8.855006784955322
1979	6.211489240686321
1980	7.604703608247422
1981	8.232589449153043
1982	13.474057077700257
1983	6.752085334865722
1984	2.347998310123369
1985	2.975967180729692
1986	4.668644177091585
1987	6.657760298613509
1988	10.19384109066309
1989	11.450182724313887
1990	8.88865876084744
1991	9.621393979333702
1992	9.202177519104989
1993	13.99218909088501
1994	14.897644132405418
1995	12.785058326142993
1996	14.335675281084132
1997	16.018437722549635
1998	17.619968019452784
1999	12.837340424742713
2000	18.384932175574413
2001	20.035598953189098
2002	21.249591963367894
2003	23.101639795726246
2004	17.09120152799201
2005	19.32973894103128
2006	17.824681025478743
2007	21.24374350933798
2008	19.155125843053415
2009	17.319273884309588
2010	16.8765507472986
2011	16.8332344432205
2012	16.528619352543224
2013	14.86682389663323
2014	12.758680614659616
2015	13.55292066901753
2016	15.35205745224679
2017	15.278305924023671
2018	15.676131753903789
2019	12.837215127113879
2020	8.539689431040683