Year	% of total merchandise exports
1960	0.1778795295191079
1961	0.34065138721351024
1962	0.31959042032809987
1963	0.30786749595375196
1964	0.20604554994750174
1965	0.24368863966303095
1966	0.31794861550856796
1967	0.28067079928757477
1968	0.18771187897983738
1969	0.2011897073405801
1970	0.19045772971171754
1971	0.15644339703104274
1972	0.18135521725867923
1973	0.2843464431550252
1974	0.32594378192975787
1975	0.24080327928536033
1976	0.35674088756141226
1977	0.2571792526294385
1978	0.16552011722720741
1979	0.12613034057387987
1980	0.15000930488053377
1981	0.15497461591638467
1982	0.14716230239075503
1983	0.18680408763823025
1984	0.1642756168016867
1985	0.2608997393807384
1986	0.294880778488834
1987	0.25905083117779315
1988	0.20943469068023463
1989	0.18079178991256364
1990	0.3177449431895667
1991	0.2583369999367231
1992	0.7516755322260859
1993	0.9920817857013873
1994	0.7752763955115477
1995	0.8221886094215964
1996	0.9393515647479995
1997	1.0077952400320702
1998	0.9500588631648068
1999	0.6574506059319367
2000	0.7216534605704441
2001	0.7428774857505012
2002	0.8657439968441486
2003	1.224283569348551
2004	1.453548826221752
2005	1.7865208759169158
2006	2.097376768035915
2007	2.7539093269964625
2008	3.1230711353376837
2009	2.101176461294153
2010	2.379621774755736
2011	2.6455645439806785
2012	2.7521409052138996
2013	2.896113423570596
2014	2.8428410189592026
2015	2.1895228072109063
2016	2.3646478330780494
2017	2.484081831476042
2018	2.4977437746841087
2019	2.652797512304926
2020	2.6390551885326885