Year	% of total merchandise exports
1960	2.1082872928176797
1961	1.9528337061894108
1962	1.9554848966613674
1963	1.285250811080609
1964	4.2464159259167555
1965	3.312252604759088
1966	2.9501068336019793
1967	2.98945275394845
1968	3.507239158652141
1969	1.44019269758137
1970	1.607865379784533
1971	1.8026817970758446
1972	0.8628907418084855
1973	0.6174923401036704
1974	0.6985213558814312
1975	1.2570879789407634
1976	0.604993086952875
1977	0.4834293331435458
1978	0.4728491170648979
1979	0.6071211103789097
1980	0.4818478743696271
1981	0.5991560161483428
1982	0.6823782336961616
1983	0.6341739020690396
1984	0.5665209982780188
1985	0.4713627470553284
1986	0.5770025962193728
1987	0.30055278774570604
1988	0.6858118052041295
1989	0.48760799013121814
1990	0.634908388425401
1991	0.7797851321724368
1992	1.0008291247348728
1993	0.9982787062287646
1994	0.9627699595948237
1995	2.652470633946105
1996	1.1085769261114047
1997	1.3130824623846116
1998	1.7465952566697203
1999	0.5569606808454941
2000	1.5821987957427872
2001	1.6478004625729095
2002	1.6003225405875712
2003	1.779535723787652
2004	2.425621743678596
2005	2.0182592363438037
2006	1.870793654790345
2007	1.8651257839226028
2008	1.7170801556869044
2009	2.234386140551002
2010	1.8993628450204199
2011	2.41295914130556
2012	1.668301384167021
2013	1.443658231717121
2014	1.7340803723937661
2015	2.4055580206309224
2016	2.026456390380089
2017	1.748164855104638
2018	1.572109093114688
2019	2.051025014576287
2020	2.6786365812117263