Year	% of total merchandise exports
1960	1.3501254584057132
1961	1.1310299014937635
1962	1.2347014335515971
1963	1.377326723412216
1964	1.0179254183425195
1965	1.320348829720086
1966	1.8303247582448545
1967	1.9077918178801494
1968	1.8670899079552925
1969	1.688029535884525
1970	1.7856485648230245
1971	1.9187484578395912
1972	2.1517467728548136
1973	2.231716533644374
1974	2.466959993260192
1975	2.7102856444624077
1976	2.659803490217149
1977	2.763487926732872
1978	2.6263015796046476
1979	2.9543837644337483
1980	3.3295661131510377
1981	3.3125066981024585
1982	2.8625253728800213
1983	3.2754138318045865
1984	2.7824145491792294
1985	2.5130982232373613
1986	2.2639061436373975
1987	2.213425012030644
1988	2.324857015972168
1989	2.241272441513752
1990	1.7366202801100468
1991	1.6586764439671868
1992	10.79058064295423
1993	11.2100287776985
1994	24.42845913541588
1995	25.13391670864834
1996	24.963731136793907
1997	25.898208474663015
1998	23.078590794707317
1999	18.182187829566708
2000	18.609687668319868
2001	17.413138652653814
2002	17.78249089777939
2003	18.345325270344052
2004	17.19950646941531
2005	18.349305627583597
2006	18.699206877184267
2007	21.992679335044656
2008	21.581302744758986
2009	16.41140298052112
2010	16.734209729841535
2011	18.07717586125906
2012	21.238073629009673
2013	20.318587298493203
2014	18.49835764323779
2015	17.286827371417782
2016	16.51428883156165
2017	17.14958708340892
2018	16.212843455013292
2019	17.066628709286267
2020	17.263777303028448