Year	% of total merchandise exports
1960	2.8688218746721152
1961	3.1753675958600374
1962	2.8174125215033583
1963	2.8548854288111625
1964	2.6365868238296413
1965	2.8392563074331543
1966	3.4082994416799344
1967	3.5889774751755352
1968	3.6259388126477274
1969	3.443836954014138
1970	3.1676011482671083
1971	2.9708942986862312
1972	2.8381572409354248
1973	3.1231860379865117
1974	3.5895629463836833
1975	3.369003945142457
1976	2.905989255216969
1977	2.897618898629172
1978	3.2230798390087614
1979	3.38278435031846
1980	3.8450337108742136
1981	4.031378412705284
1982	4.153083060850886
1983	4.2834556125148495
1984	4.285435108760631
1985	4.710398522048557
1986	3.9863733980895146
1987	3.925919329570846
1988	4.41386735905031
1989	4.595628733613019
1990	4.580251205345403
1991	5.269584391844058
1992	5.938245574704598
1993	7.431145532480234
1994	7.831741806595992
1995	8.256215446701637
1996	8.38045766613191
1997	7.994135525083536
1998	6.485928980819587
1999	6.6058839724372875
2000	7.438135260245139
2001	7.551268116322081
2002	8.147929113773197
2003	9.000548773229296
2004	9.33675356345924
2005	9.596391796793496
2006	9.828361027859202
2007	10.039927906210085
2008	10.173027067937685
2009	11.676800089059887
2010	13.205466723052457
2011	13.23959498634315
2012	13.770360922807685
2013	14.03517657758482
2014	13.99655897005255
2015	14.662838936342132
2016	14.383617818725137
2017	15.308678382459743
2018	15.300747202488193
2019	14.990695179136853
2020	15.751968897675372