Year	% of total merchandise exports
1960	12.601880877742946
1961	10.230547550432277
1962	8.663691257547914
1963	9.567817341668931
1964	9.686055001216841
1965	14.685160722148833
1966	14.71667346106808
1967	13.282296650717704
1968	15.74914297237346
1969	15.018158115280752
1970	13.859198966847355
1971	13.389888122016464
1972	13.375403515064562
1973	10.49205481116884
1974	13.093683908196036
1975	9.485601701811744
1976	10.842482246347238
1977	10.768467116636522
1978	11.595893912975077
1979	13.755334785457507
1980	12.365037854608103
1981	7.900324344124218
1982	4.970035706579616
1983	3.997320349122222
1984	5.231024166482079
1985	5.179117156241832
1986	5.453652936190302
1987	5.972102836602328
1988	9.33062310793311
1989	11.347055430958122
1990	10.610482871670426
1991	8.273692530451735
1992	6.865835212802189
1993	4.669896911717605
1994	5.186687894846022
1995	2.220413095276862
1996	5.109236954366315
1997	5.123448562965408
1998	4.404395460162496
1999	5.089619863210956
2000	6.048124806377428
2001	6.717388144052753
2002	6.777037214483188
2003	5.625792765338062
2004	5.2980747990143175
2005	5.571554884425735
2006	4.899082388452031
2007	4.490968116839842
2008	4.201363743779681
2009	3.2995881166599768
2010	2.8585537964402064
2011	2.85329146300785
2012	2.344824842255775
2013	0.95378449848589
2014	0.8622064682742261
2015	0.826989458346028
2016	0.7680482528962056
2017	0.8193580133134746
2018	0.8891594697717999
2019	0.8859157371718657
2020	0.724511986701093