Year	% of total merchandise exports
1960	40.05200870349732
1962	29.58546982146167
1963	22.74715660542432
1968	50.090397434284995
1969	47.008684983695474
1970	41.02003830284958
1971	41.54335421253549
1972	37.593947220713794
1973	33.14766804028054
1974	32.725967256039674
1975	32.50534825111726
1976	28.005892739475474
1977	29.12302953433593
1978	31.83598909867662
1979	32.500760306080004
1980	35.52147875004745
1981	34.39353186692332
1982	36.413132854509435
1983	36.643304095964154
1984	34.39689564608911
1985	33.85708073255277
1986	32.42620285280557
1987	30.290611520112716
1988	30.57955746094192
1989	30.431413902060463
1990	29.995786400653586
1991	30.773990744772256
1992	29.657818533860723
1993	32.10777613939017
1994	36.740620518644675
1995	37.59002120229377
1996	36.82090069645587
1997	36.11445717450005
1998	33.87830944489851
1999	35.207633557276964
2000	37.18327775306782
2001	37.640175629176035
2002	38.689718741564775
2003	44.070387002180254
2004	44.95683505362166
2005	46.15595234049968
2006	47.29167843238119
2007	48.64634377736336
2008	49.542241769080974
2009	47.97493619675967
2010	49.04492653926065
2011	49.0871263031367
2012	49.75274085877951
2013	50.8193653846807
2014	51.37318527810968
2015	50.945968171991005
2016	48.719993842889394
2017	50.23776180306283
2018	49.921174654329896
2019	49.74083028221286
2020	46.441320513114434