Year	% of total merchandise exports
1960	7.953667953667953
1961	6.712564543889846
1962	8.545335942596216
1963	9.98185117967332
1964	11.87953151143335
1965	10.297961317302667
1966	14.124597207303974
1967	12.350346565847511
1968	8.545557441992077
1969	15.65872897009635
1970	15.393455252884793
1971	24.065611387678903
1972	11.740990927862022
1973	11.87666409535422
1974	37.01831369562999
1975	33.939237644214856
1976	29.41030768948498
1977	34.01116328986201
1978	32.68161172507675
1979	40.65466705710399
1980	43.83140582963241
1981	41.33592307880939
1982	43.58343940899871
1983	45.937008273930395
1984	38.06927425297334
1985	40.40892059080802
1986	45.613380439617806
1987	37.09869893305952
1988	42.98667311980364
1989	47.904266995739825
1990	47.39702498978529
1991	47.043089646971985
1992	46.06572008414067
1993	54.69784765666933
1994	59.01782826364239
1995	60.33809652477061
1996	59.89535597283193
1997	62.25294929459094
1998	65.07456026824153
1999	58.66952572275911
2000	60.35572520954224
2001	58.98474545571107
2002	55.96799614116148
2003	50.63277017525284
2004	43.98981425755519
2005	44.04841855533388
2006	51.4288626743457
2007	52.08162236051515
2008	51.722457052815244
2009	53.00703344015506
2010	56.0299316741785
2011	56.550441084091915
2012	54.43291658489391
2013	55.89261006485572
2014	54.788659215748666
2015	51.472775656110855
2016	53.688772682831484
2017	59.62971121887479
2018	63.83057434853313
2019	61.965129922672546
2020	61.750167279392564