Year	% of total merchandise exports
1960	0.9283380373520084
1961	0.7979669617977145
1962	0.7369348149323375
1963	0.7457614985606318
1964	0.6623840108333661
1965	0.7559996397189217
1966	0.9916495224917246
1967	0.9646330338769638
1968	0.895391377115067
1969	0.7657190758700407
1970	0.7694997829522293
1971	0.7738828955446048
1972	0.8329197717443115
1973	0.8403089899551179
1974	1.0404850861753765
1975	1.2398145952079442
1976	1.1575153259197275
1977	0.9914557950869849
1978	0.8041831951949638
1979	0.777391587457939
1980	0.7906515313078748
1981	0.834871321075354
1982	0.8169953346471346
1983	0.8899886376266184
1984	0.9219570112413342
1985	1.0176231990875673
1986	0.8993883235312408
1987	0.9597313732722518
1988	0.8639610801836642
1989	0.8174494200293823
1990	0.9241273504660231
1991	0.9145287845769182
1992	1.3608290631673352
1993	3.114214417345492
1994	2.9732859507918636
1995	3.2483902826630855
1996	3.6913571407434738
1997	3.9035508076145025
1998	3.4117949640068685
1999	2.6544834484484134
2000	2.9561191704656573
2001	2.9697687303684757
2002	3.2809161002765084
2003	3.5880607817179326
2004	4.116701827092872
2005	4.594161036097785
2006	5.176068616892953
2007	5.630690133115993
2008	6.148113842881119
2009	5.268356718881857
2010	5.701643593844321
2011	6.198636915430282
2012	6.542744490377732
2013	6.548769682720672
2014	5.849817199467356
2015	4.948939019440932
2016	4.862051242946737
2017	5.101585235027276
2018	4.84721291570553
2019	4.931363935003409
2020	5.0633537475484935