Year	% of total merchandise exports
1960	9.256473456045278
1961	8.766560785655642
1962	8.778614852935958
1963	7.794078304890688
1964	7.679041679041679
1965	7.552722608971233
1966	7.09660562083376
1967	6.429503188968375
1968	4.888283529309386
1969	5.448591182251797
1970	6.049173018931291
1971	6.6002904221381495
1972	6.658822357034181
1973	5.853618255866164
1974	4.575906234981071
1975	4.417877434476186
1976	4.045241189075158
1977	4.3129645898617985
1978	4.384861342635352
1979	4.335683847208859
1980	7.900648855589506
1981	6.871603171749576
1982	5.068338361876325
1983	6.190393072133486
1984	5.137900406435335
1985	6.0942174711954085
1986	5.341874383952794
1987	4.937444226263707
1988	5.1663999664499975
1989	5.59057963279225
1990	5.580326810292273
1991	6.949018816091379
1992	7.109277232896514
1993	9.576188780214828
1994	8.148342346917588
1995	10.866103050581385
1996	11.343039678604336
1997	11.53493119875443
1998	11.508316293278591
1999	14.61313304008385
2000	16.88168107336981
2001	16.14046393398375
2002	16.702183020353065
2003	17.519181169642536
2004	20.55957857037373
2005	20.313692521724544
2006	18.967841424351565
2007	17.10145053003052
2008	19.428702520622814
2009	18.735090269456308
2010	20.772768144132613
2011	23.003245793042723
2012	25.190994179001724
2013	26.15181945976533
2014	27.139953310617475
2015	24.59183029494226
2016	21.872457365262477
2017	23.678011155740755
2018	26.563675370344875
2019	25.4041795242657
2020	23.272264918352597