Year	% of total merchandise exports
1967	1.0853031860226106
1968	0.8968309989969164
1969	0.8741386004076482
1970	1.2774600459671814
1971	1.3603406043650623
1972	1.0381711409395973
1973	0.9622460511445767
1974	1.7976546169561982
1975	1.4430143433732563
1976	0.8390031667979084
1977	0.696575471930704
1978	0.6741927694916305
1979	0.8471592540231939
1980	0.7947083227565113
1981	0.7335241606006812
1982	0.863483564082804
1983	1.0637236059996644
1984	0.796995087008316
1985	0.815320575274516
1986	0.7770535930857971
1987	0.6809298922702106
1988	1.08929936231929
1989	1.116696172051741
1990	1.3647142921863908
1991	0.8774938080870164
1992	1.0274200403050682
1993	1.1008576053191828
1994	0.8268070635329399
1995	1.0017753656005723
1996	0.7880238939802586
1997	0.8459407961243474
1998	0.9644978503004418
1999	0.8274839329366491
2000	0.6629695226996439
2001	0.7786464152609393
2002	1.062885533981144
2003	1.2602468023892768
2004	1.2768823620080467
2005	1.0235391160009364
2006	1.0337193797774071
2007	1.137067777834528
2008	1.6469460125805075
2009	1.7309404388117
2010	1.8040162351319258
2011	1.6169317198813784
2012	1.4381802446370398
2013	1.3864162759641319
2014	0.9935603912930259
2015	0.9416162379099612
2016	0.9747735901253339
2017	0.9559010696070914
2018	0.8980948133325247
2019	0.7435008823875281
2020	0.6798806128424212