Year	% of total merchandise exports
1960	0.4499027237354085
1961	0.6126877419903842
1962	0.770212162736852
1963	0.7656395891690009
1964	1.5807592328048525
1965	1.0998253218606457
1966	1.3364779874213837
1967	1.0515687596150685
1968	1.5858032061981775
1969	1.29350660469231
1970	1.4661304425352917
1971	1.8364542340321528
1972	2.058190886104847
1973	2.5221602701781447
1974	3.6357729856715157
1975	3.2230468267004735
1976	2.698139900174402
1977	2.503690984791937
1978	2.4736620479171423
1979	1.8761920302171813
1980	2.280012541108659
1981	3.2650019010005096
1982	4.2941098395134
1983	4.077333867606791
1984	3.4478089724896543
1985	3.524619972321165
1986	2.5672280990142866
1987	3.2218063287677996
1988	3.028635553410739
1989	2.78332606853161
1990	2.411361476722766
1991	1.6111498268131301
1992	1.7376485440032359
1993	1.9962756286238048
1994	1.7614250113559395
1995	1.2206578805975346
1996	1.6048246257660412
1997	1.3441715338647777
1998	1.2705129435995712
1999	1.3741162358528207
2000	1.444838616178104
2001	1.2730914744746091
2002	1.335490956729777
2003	1.229925765364291
2004	1.0500829035121009
2005	1.3046445347127265
2006	1.1392276802885408
2007	0.9945555318806545
2008	1.0726765378014453
2009	0.9395412484392688
2010	0.8747732510344666
2011	1.0330006526217033
2012	0.9482527574497279
2013	0.9244658744219554
2014	1.0248590769926336
2015	1.0041013199041704
2016	0.9467703861880377
2017	1.0337430517646677
2018	1.08810712555112
2019	0.9819253572917805
2020	1.2160251369893587