Year	% of total merchandise exports
1960	4.128942455561329
1961	3.9525788479832333
1962	3.848178414634256
1963	4.058282652265625
1964	4.36088864839964
1965	4.417403110032811
1966	3.8483587373596593
1967	3.904855811662696
1968	3.6082666795130995
1969	3.5540411435213053
1970	3.707038180379053
1971	3.7858696172328945
1972	3.176492713595194
1973	3.1091827825343024
1974	3.271710118132446
1975	3.7175551255849646
1976	3.410334019210775
1977	3.5840581543331687
1978	3.394945901446393
1979	2.8148438632345436
1980	3.458146017695672
1981	3.6222157575518685
1982	3.205892820679432
1983	2.536623386444691
1984	2.28590779583831
1985	2.0569266120591867
1986	1.8305586345891318
1987	1.7204280493558304
1988	1.6368977000027616
1989	1.5100920842610246
1990	1.458173417205102
1991	1.4829861920733614
1992	1.479404471598385
1993	1.3423837508383285
1994	1.2005638793361135
1995	1.2592680620090735
1996	1.2124520310787836
1997	1.1384319768707307
1998	1.2237523316734829
1999	1.0558583549715193
2000	1.0099499073893923
2001	1.0989252372054124
2002	1.0764902834238457
2003	1.1136557615055083
2004	1.155519310378933
2005	1.1996344321996375
2006	1.3407330477562591
2007	1.2996893657935784
2008	1.4064627127606786
2009	1.4546955367757397
2010	1.4430142660694392
2011	1.5280539464753131
2012	1.4957955103665626
2013	1.5448344806355767
2014	1.5186222670150202
2015	1.3640690699512081
2016	1.2067797680638668
2017	1.1621341656914896
2018	1.1596135500917868
2019	1.1644231228948412
2020	1.0937060665835758