Year	% of total merchandise exports
1960	7.059582759419934
1961	5.651464861225916
1962	4.4358980617577
1963	4.311992194454399
1964	3.8881108701091995
1965	3.912648818972047
1966	3.728500502072439
1967	3.6160479745826057
1968	3.6376031455086153
1969	3.419739038229739
1970	3.1590840002424567
1971	3.11665445941681
1972	3.213228346141371
1973	3.4493502992842116
1974	4.6625607850321105
1975	6.575588345816049
1976	6.177977359147526
1977	6.284333108757319
1978	5.9574355397445595
1979	5.303756078420059
1980	6.02974752630629
1981	7.667969295105751
1982	6.999588806737171
1983	6.49578310203495
1984	5.674403176666528
1985	4.88618057774367
1986	3.5053681113654824
1987	2.829553677585706
1988	2.768090833077004
1989	2.7364762831945213
1990	2.822795772550802
1991	2.869216008266057
1992	2.796761795710124
1993	2.7262808514751233
1994	2.3589917873384674
1995	2.1205348875440255
1996	2.0759625569092015
1997	2.0168549749023565
1998	2.020844818378332
1999	1.9210348968308488
2000	1.832972239480774
2001	1.9302129124458742
2002	1.9638347265723504
2003	1.9467114863596784
2004	2.0232906016071546
2005	2.114934995852817
2006	1.8429336548807966
2007	1.847409950426901
2008	2.1102016394836163
2009	2.4781391700576605
2010	2.373139872015827
2011	2.073802824839914
2012	2.214054675678733
2013	2.239573730497443
2014	2.2106833628331826
2015	2.135236656295045
2016	2.1245431270816395
2017	2.0385243639452826
2018	1.9363789484719243
2019	1.8016377630388085
2020	1.6743375836447398