Year	% of total merchandise exports
1960	0.06269592476489029
1962	0.026253609871357313
1964	0.02433682161109759
1965	0.17613386173491855
1966	0.20383204239706482
1967	0.2679425837320574
1968	0.14115749142972372
1969	0.23465872055126175
1970	0.44860575370864414
1971	0.3931247506022494
1972	0.24322991391678622
1973	0.4299213076899705
1974	0.16841170787749027
1975	0.10208015076453036
1976	0.11886784752265121
1977	0.41421570025845694
1978	0.5436326371863952
1979	0.3360250757052542
1980	0.3212322138253403
1981	0.8497262348183311
1982	1.0560586339623166
1983	0.8138392802625221
1984	0.6646553633664283
1985	0.6192572933630899
1986	0.9680897863710983
1987	1.3076306946940688
1988	2.184204570399778
1989	1.203519018327283
1990	0.9421487171077085
1991	0.8977073722904393
1992	0.5905776555149573
1993	0.6012674003630359
1994	0.917022564630011
1995	0.7264514606236592
1996	0.7512531559972893
1997	0.5498731859084752
1998	0.6948858498249781
1999	1.0897766909728885
2000	0.5545040645702556
2001	0.451659046967946
2002	0.5088889723541615
2003	0.5266980248275264
2004	0.5687164505168083
2005	0.9155481636606627
2006	0.6768373796585242
2007	0.679095880381832
2008	0.71344046142077
2009	0.9657134243168891
2010	1.1694150452657552
2011	1.0690349574151083
2012	1.0623845653343127
2013	0.9722904626550491
2014	0.9781205567400377
2015	1.0319407075015563
2016	1.1103248393602552
2017	1.1363501249278092
2018	1.450388428562559
2019	1.3653726543274733
2020	1.3015426914960093