Year	% of total merchandise exports
1960	3.2861787189174945
1961	2.846299810246679
1962	2.576501700037779
1963	2.982107355864811
1964	3.2270029673590503
1965	3.2592260738085903
1966	2.8490594133121556
1967	3.1170980644568065
1968	2.9946137149288528
1969	2.9684601113172544
1970	3.1944119710077157
1971	3.3709884467265727
1972	2.632649129941568
1973	3.000621430473767
1974	3.289237668161435
1975	3.445634678359327
1976	3.23656990323657
1977	3.381451688098124
1978	3.229621109038114
1979	2.554878615942703
1980	3.1826315161636645
1981	3.6801386009258996
1982	3.1350094957340064
1983	2.3008718956794825
1984	2.33132193280835
1985	2.0050358382005853
1986	1.732479939489608
1987	1.596279759879123
1988	1.7037621434317183
1989	1.6003108794129033
1990	1.4459242392683809
1991	1.3958324258653638
1992	1.3351746092085945
1993	1.281528852399867
1994	1.173218837194408
1995	1.2762583168361052
1996	1.1290667376908605
1997	1.0848728591687633
1998	1.059652336353247
1999	1.0781211763380014
2000	1.0034290142718763
2001	1.1337856789643876
2002	1.0910742302147998
2003	1.1495498874046133
2004	1.1851686182793393
2005	1.1545215377414608
2006	1.157263782250719
2007	1.1207721149759111
2008	1.139640138069511
2009	1.1669846236424803
2010	1.20387783280356
2011	1.2489750884643565
2012	1.2427376800530794
2013	1.2273484874699812
2014	1.187675480755717
2015	1.209213959930931
2016	1.0784662481639138
2017	1.0813362199020846
2018	0.9893673518141157
2019	1.0262488811677108
2020	0.8835073700793105