Year	% of total merchandise exports
1960	4.841402337228715
1961	5.328905755850728
1962	4.707215715904798
1963	3.708781792006581
1964	3.505192878338279
1965	3.4160273282186258
1966	3.5687695438526825
1967	3.4665072870212867
1968	3.3523595144304204
1969	3.1230674087816945
1970	3.0628945522562545
1971	3.147625160462131
1972	3.124933113589178
1973	2.7786819755570678
1974	3.654708520179372
1975	3.2491535771771107
1976	2.563347661386877
1977	2.2712824120773396
1978	2.296912480536423
1979	2.3776857966700775
1980	2.647127468116115
1981	2.748160981567213
1982	2.0028345474644973
1983	1.8978636489749174
1984	1.9349051768323935
1985	1.6742258622377395
1986	1.6310263746382532
1987	1.575146672474579
1988	1.298836705649403
1989	1.3724435161996187
1990	1.3976603546474464
1991	1.5889235671158013
1992	1.6683901515057145
1993	2.0614595856960825
1994	2.0881477599620344
1995	2.095126776773298
1996	2.0996226228201307
1997	2.334524012500181
1998	2.468795658158242
1999	2.2960334976473225
2000	2.1815063759102795
2001	2.2284340546083206
2002	1.9276933183553675
2003	1.7267892118588948
2004	1.6845801891906451
2005	1.8662859426112468
2006	1.8143271930489047
2007	1.8480150789977234
2008	2.047086486507
2009	2.0288161991236913
2010	2.400997541640178
2011	2.3592754155246807
2012	2.553308358315438
2013	2.5057329256780605
2014	2.358859272993756
2015	2.374759293098378
2016	2.2043875663239305
2017	2.2755367440736367
2018	2.3534778590103427
2019	2.364911165965047
2020	2.121082521855648