Year	% of total merchandise exports
1960	1.2277555524899986
1961	2.1240680827120553
1962	2.0711268565199616
1963	1.7798913043478262
1964	2.3577491354919835
1965	2.9034650842428738
1966	2.000318775900542
1967	1.5035419979760012
1968	1.4114477097026012
1969	2.727867399584305
1970	3.397390034601497
1971	2.6982328259471378
1972	3.50131733251997
1973	4.229229471806752
1974	3.30299870803962
1975	4.445168606697343
1976	3.677870316992973
1977	3.6101796577100367
1978	4.032868599554606
1979	3.60698778702684
1980	3.7809538474460016
1981	4.161091719038381
1982	4.03127492003627
1983	4.176767292728057
1984	3.5149113268679866
1985	3.536526736064542
1986	2.6356264625048786
1987	2.250567846119704
1988	2.2102372620014186
1989	1.7078799166119485
1990	1.5704159653891356
1991	1.6337484155123265
1992	2.0275445608595795
1993	1.6818514937024538
1994	0.8416576030629292
1995	0.9973682215691991
1996	1.1983599560242535
1997	1.2545731989702247
1998	1.2863006836519635
1999	1.2652791442406004
2000	0.9550057297917863
2001	1.0967554396103785
2002	1.0106977173644485
2003	1.1099996568765524
2004	1.0434020926551693
2005	1.1643614507702056
2006	1.2404042544430198
2007	1.213859459960772
2008	1.3473143610750182
2009	1.3817690731394205
2010	1.4236310917398005
2011	1.426230200893367
2012	1.6328542390204446
2013	1.8657042342231749
2014	1.6089517512856935
2015	1.5864396963223546
2016	1.3718475986357728
2017	1.4303530493128993
2018	1.2523556218529563
2019	1.4259874794172769
2020	1.3819233112388645