Year	% of total merchandise exports
1960	13.040400998565962
1961	13.308965138177573
1962	13.267343800533327
1963	12.834572356784832
1964	13.095690689798465
1965	12.830066932546227
1966	12.816806203718464
1967	13.057580979882472
1968	13.89763329073711
1969	14.446869647631889
1970	16.055358814557934
1971	15.7533975007112
1972	15.81145343783595
1973	15.581035708910429
1974	15.41306244704121
1975	16.458351782265645
1976	16.192996672651137
1977	16.383074126820148
1978	16.08299457105832
1979	15.48802229489436
1980	15.33926683538816
1981	14.751726876237425
1982	14.423288039442838
1983	14.392829707191343
1984	13.857794847979898
1985	13.827393247517955
1986	13.208447201681404
1987	12.606831650348196
1988	12.490644521240103
1989	12.168435828119271
1990	11.913373194974621
1991	11.041920040290556
1992	10.052517879875486
1993	7.721458585247516
1994	7.462053598924288
1995	7.057128854533734
1996	6.901251714325986
1997	6.149934989932296
1998	5.7416005395879015
1999	1.1633001728191996
2000	1.1755886376949025
2001	1.145011576178144
2002	1.137588248672087
2003	1.0110472145063985
2004	1.1548914203514105
2005	1.0826117027072544
2006	1.0336744595762644
2007	1.0232559209487442
2008	1.1359279348547664
2009	1.09450798501561
2010	0.8515477568654666
2011	0.9442358252130961
2012	1.1192606732463293
2013	1.1582858996340868
2014	1.006221517782122
2015	0.84503137000898
2016	0.7467429248699694
2017	0.8641404516189882
2018	1.0267830732742527
2019	0.923002995851467
2020	0.6845814139821009