Year	% of total merchandise exports
1960	1.1517588724475851
1961	1.2915736709231276
1962	0.8919382504288165
1963	0.9935746748158596
1964	0.9116466959630973
1965	0.767424835281347
1966	0.7871986505165992
1967	0.7117280403165201
1968	0.6832650744089859
1969	0.5062401124978028
1970	0.36423694571837256
1971	0.5187945734355729
1972	0.7113415010104931
1973	0.5631602745920171
1974	0.4446820554751871
1975	0.5028487071252278
1976	0.7117051631171817
1977	0.5088564121684425
1978	1.0232045720581147
1979	0.6048079507726285
1980	0.6750807161725858
1981	0.7575527438978082
1982	0.6821899549649615
1983	0.7111436366962844
1984	0.7157449021282918
1985	0.6919415533293368
1986	1.0556812667005795
1987	1.4949345494632789
1988	1.7076558395183004
1989	1.339348111778142
1990	0.72366922066331
1991	0.5228880848445325
1992	0.5539345393128224
1993	0.5556321482645639
1994	0.6872174007853976
1995	0.5140464429836957
1996	0.8447988268455026
1997	0.6191631295707198
1998	0.38690119324904704
1999	0.4130454669038232
2000	0.4601985272856029
2001	0.63056760513445
2002	0.9273895797730438
2003	1.0418658182850875
2004	1.1799773821598682
2005	1.0928648791517706
2006	1.3717491472354468
2007	1.3495333388562771
2008	1.401590363397215
2009	1.5849199562945078
2010	1.528178462412422
2011	1.372187586324951
2012	1.2290926023425723
2013	1.1470629311682883
2014	1.2183397752740746
2015	1.1811281366051534
2016	0.9957250534855338
2017	1.1159489262359403
2018	1.1549385839438928
2019	1.1496077215773215
2020	0.8922596540842102