Year	% of total merchandise exports
1960	1.6704329653067451
1961	2.1065546461428895
1962	1.4075539262823247
1963	1.727954073773712
1964	1.9070637996846125
1965	1.4737431746840808
1966	1.3061969837082184
1967	1.0606310143460342
1968	0.5749223259582998
1969	0.6850646252934435
1970	0.5887425751629984
1971	0.9007842124337697
1972	0.7219086374437397
1973	0.8552069945963763
1974	0.5058403058024356
1975	0.5237049536601347
1976	0.583697153160332
1977	0.6636783990609477
1978	0.5105806781165237
1979	0.4926486127174857
1980	0.5112077345097615
1981	0.4579582171461819
1982	0.33276091482851267
1983	0.5682862330170781
1984	0.509376250657023
1985	0.5819854274173452
1986	0.7754785413937564
1987	0.6681005106360531
1988	0.9633775713551401
1989	1.3567530798924354
1990	1.3089420031569698
1991	1.2192438936477317
1992	1.1289899850032818
1993	1.8552687504348728
1994	1.8334402977568582
1995	3.307309893896763
1996	2.8938139105600813
1997	3.1361985561220727
1998	2.7831919796897466
1999	4.261227440512699
2000	4.954594144855946
2001	5.2579877172330844
2002	6.2409081679577785
2003	7.939119472467649
2004	8.249695635513811
2005	8.607693087743868
2006	6.189434291725942
2007	5.8515179413801235
2008	5.8162276173661684
2009	8.50871319378954
2010	8.617058439654432
2011	11.893794588330389
2012	12.962301930213274
2013	15.855152040295565
2014	16.80865330490711
2015	16.943355079174516
2016	16.98859194575788
2017	18.1657366708997
2018	20.99724935741198
2019	22.4279179230344
2020	24.064159509404398