Year	% of total merchandise exports
1960	0.8255933952528379
1961	1.2257405515832482
1963	2.803738317757009
1964	2.08
1965	4.556962025316456
1966	5.335365853658537
1967	2.3034154090548054
1968	7.905982905982905
1969	7.133963608885684
1970	7.524888520170071
1971	11.293528208183377
1972	9.734374591898034
1973	9.377060568153759
1974	8.867968923978033
1975	13.49744345457387
1976	11.26475159973554
1977	9.600185860624485
1978	8.761835022513344
1979	5.873812119716934
1980	6.845687858730501
1981	7.455446238191299
1982	7.29233982701738
1983	7.134940836328027
1984	5.987132295840712
1985	10.189459361178649
1986	16.67168427044463
1987	17.359466155792017
1988	11.15855056167195
1989	15.066986930369177
1990	8.77452855611136
1991	8.192531645169526
1992	3.354532241106747
1993	8.505533083013932
1994	5.63064405868875
1995	7.581992557628722
1996	9.167384080598406
1997	7.728845864089107
1998	9.598134358533917
1999	7.8189371403732695
2000	7.486069887725528
2001	8.248274988061688
2002	8.987978682341135
2003	12.040672972863275
2004	12.825656199271446
2005	13.802860465522604
2006	9.003827036558107
2007	17.983954663088074
2008	23.248613377301375
2009	17.767183084817887
2010	12.689224599201426
2011	20.10044588320002
2012	17.489721552743134
2013	12.302978567513525
2014	12.531526202783938
2015	11.997112186793732
2016	16.436436301706806
2017	11.53053107505784
2018	9.32257945790192
2019	10.243090734060779
2020	11.866132303342816