Year	% of total merchandise exports
1960	40.24291497975708
1961	34.47963800904977
1962	27.001194743130224
1963	28.98781134075252
1964	32.935831913685405
1965	34.73621813870776
1966	30.796460176991154
1967	37.81512605042017
1968	42.98507462686567
1969	29.72319008904375
1970	24.426051827766283
1971	18.425273390036452
1972	24.564090070650472
1973	21.003902800330458
1974	13.372263518251712
1975	9.17106635555221
1976	10.797716517689476
1977	12.909173000225751
1978	13.19985658483196
1979	11.080025787303402
1980	7.564536254643621
1981	9.592566866799244
1982	9.15999269687594
1983	7.733545428252696
1984	10.235549273282475
1985	5.496431166388853
1986	10.47084526141329
1987	6.593349817322951
1988	13.130707273340658
1989	16.623594740484513
1990	18.679792669857857
1991	22.94220854836976
1992	23.481305594008894
1993	23.726334060144243
1994	28.017766420962044
1995	23.421108993316025
1996	8.101745657328886
1997	9.744940445231304
1998	27.85388762807111
1999	20.961354471236067
2000	16.638140383535923
2001	16.07893898888785
2002	20.83711261438223
2003	20.39833695677622
2004	29.453323598006083
2005	20.898884968707222
2006	36.819580767297346
2007	38.85644655437884
2008	50.56903414601076
2009	52.227016249035316
2010	39.908499399082444
2011	39.26562356488304
2012	66.68096331347968
2013	70.2326375561795
2014	67.8460844960093
2015	65.22852491792749
2016	73.07133310123234
2017	71.69753336182218
2018	73.40396434963327
2019	73.40396325072558
2020	73.4039643542439