Year	% of total merchandise exports
1960	1.1183597390493942
1961	0.7764609726195342
1962	0.5399568034557235
1963	0.6878761822871883
1964	1.2258240261509126
1965	0.8233356857210068
1966	0.8394963022186688
1967	0.6324539212143115
1968	0.984375
1969	0.914911820715922
1970	1.148895882909854
1971	1.3598010757722359
1972	0.8675902398273521
1973	1.2261823166552432
1974	1.9963931173223555
1975	1.7926151880210641
1976	2.0677291001610625
1977	1.2246036663498376
1978	1.0519237112400377
1979	1.2233960772255046
1980	1.9086103945303339
1981	2.171575626178767
1982	1.6834061548355368
1983	1.1510453370918488
1984	1.2411347517730498
1985	1.7874181031740983
1986	1.9664804469273742
1987	1.3577023498694516
1988	1.126080221751182
1989	1.1141458665729198
1990	1.579341940857976
1991	1.5732080513770959
1992	1.6965892125712974
1993	1.752170372517356
1994	2.2007567002031654
1995	2.032295889661845
1996	2.534689101082713
1997	2.9311146024650925
1998	3.151681338065767
1999	2.457624490175705
2000	2.42387588251331
2001	3.1634827573148434
2002	3.1287588985304935
2003	3.065920159527553
2004	3.162236956194412
2005	2.7075858986272685
2006	2.597648761701266
2007	2.6884158428669527
2008	3.3645189070696
2009	3.2046485011225077
2010	3.700749120092031
2011	3.2732387162766905
2012	3.6447107304613686
2013	3.624337670763796
2014	3.3087958048367354
2015	2.4778884344511893
2016	2.5851637699578944
2017	2.758732152884114
2018	2.9471608390685957
2019	3.2496118461615513
2020	3.5811603816910753