Year	% of total merchandise exports
1960	6.849794893996293
1961	5.6235566557874375
1962	4.552143782633723
1963	4.417975067064382
1964	3.9088983987434545
1965	3.8935088866871714
1966	3.6777496181556355
1967	3.5040638130334028
1968	3.4800474585319443
1969	3.4062125756680985
1970	3.114419303843001
1971	3.0328642189016404
1972	3.123505715687104
1973	3.292452266421162
1974	4.594242146178544
1975	6.2643044051496135
1976	6.4374332869906885
1977	6.913259025069084
1978	6.678057789774848
1979	7.023307637378097
1980	7.502631082044813
1981	9.506475353690181
1982	9.473620370847142
1983	8.450379741180171
1984	7.5006314709002275
1985	6.252038033556238
1986	4.574095114484364
1987	3.723126799729452
1988	3.5710959174089965
1989	3.5172321494284398
1990	3.3206571310129607
1991	3.2908773848490362
1992	3.3692370926657
1993	3.6675135264868137
1994	3.3443719523223914
1995	3.056218767687623
1996	2.9537106601846377
1997	2.8147289592261395
1998	2.8792456677627225
1999	2.7945250168559
2000	2.6500693774104187
2001	2.8615622258939286
2002	2.9019876187295175
2003	2.8294311430371266
2004	2.86502194486087
2005	3.053759604582357
2006	2.944931605904175
2007	3.0966473796985627
2008	3.457466177945598
2009	3.808371779167653
2010	3.666035765862108
2011	3.4167327541545287
2012	3.801480917841481
2013	4.006273779170001
2014	4.000865688179863
2015	4.094425358761506
2016	3.833556189072594
2017	3.5225749894588967
2018	3.255104223625105
2019	3.2501818008952577
2020	3.046484316522948