Year	% of total merchandise exports
1960	4.957805907172996
1961	5.7910906298003075
1962	4.865609924190214
1963	5.350845190319835
1964	4.990151017728168
1965	4.632022203081634
1966	3.240845176329047
1967	3.631393986723936
1968	3.6613142011160464
1969	3.4020017054889813
1970	3.9210211408057436
1971	3.404466149980536
1972	2.747458456930565
1973	2.4191002367797947
1974	3.371594940097718
1975	3.791681160860707
1976	2.8854148369342467
1977	3.1594446345433997
1978	3.002995181664279
1979	2.4699735807040315
1980	3.458770743762312
1981	3.647376059258988
1982	2.7665188130926888
1983	1.8162626483220499
1984	1.3174092010539273
1985	0.9853944555844534
1986	1.1242001696161659
1987	1.3534361129133583
1988	1.295267811282563
1989	1.1697235769965029
1990	1.3497365856331272
1991	1.3496642625372457
1992	1.406832645192452
1993	1.1795194481045146
1994	0.9840425493945874
1995	1.0887596649961397
1996	0.9762854450209937
1997	0.8395122172512056
1998	0.7680667150852769
1999	0.7308755292923937
2000	0.6344260618046971
2001	0.5978425935765579
2002	0.500969154469759
2003	0.5347929780396358
2004	0.5623322797130555
2005	0.4611923026172621
2006	0.48674943719500263
2007	0.49038024286306897
2008	0.5220489794681499
2009	0.47897867818219464
2010	0.4407232903908373
2011	0.440485663995154
2012	0.4457889026787104
2013	0.48022164772690157
2014	0.6017269576352892
2015	0.6231306679371609
2016	0.6961395630627125
2017	0.662292704794828
2018	0.6898891695862867
2019	0.6913763468935643
2020	0.6690482235926863