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	9.01331038418105
1982	6.5007949102210745
1983	5.130690017850429
1984	8.594545093742829
1985	11.855247639592521
1986	13.318229943481793
1987	13.062777135293082
1988	15.633386274240607
1989	16.95832308268626
1990	11.418327683946535
1991	9.012764276584559
1992	9.31932482884679
1993	3.119061150946157
1994	3.483077720974649
1995	3.9270015804743914
1996	3.5471640517682963
1997	2.333628814364427
1998	2.5196478350014795
1999	2.6805487259777614
2000	2.7541536240840436
2001	2.5661621313421654
2002	2.62377334955592
2003	2.1522937154044195
2004	1.7892669760985664
2005	1.7829592959350395
2006	1.4985717586590175
2007	1.4269325257713195
2008	0.9812691718468276
2009	9.885708182815165
2010	7.95698847555134
2011	9.891737366244376
2012	0.829974713779067
2013	0.6011955092078232
2014	0.47419173043319485
2015	0.46048287258103243
2016	1.0180195130063072
2017	0.978146253829346
2018	0.8786832933364418
2019	1.1428211476147148
2020	1.2554570831956708