Year	% of total merchandise exports
1960	2.163239453098209
1961	2.8321298963672414
1962	3.9515476629503907
1963	4.618074061681708
1964	5.5774117724149335
1965	5.610303677994613
1966	4.997370669821863
1967	5.460972973859842
1968	6.824771675249806
1969	7.944932370048933
1970	8.091553635404159
1971	7.5379018250954735
1972	10.2984906916284
1973	9.954958226478603
1974	7.683182857089078
1975	6.1340397287862745
1976	4.722069537653443
1977	4.835703387537112
1978	5.079622599512793
1979	4.166211793301954
1980	8.953219568132564
1981	4.221254805938809
1982	4.3086752649301365
1983	4.316723203535559
1984	4.548285679519736
1985	4.04845007126381
1986	5.160238108419633
1987	5.324147914486218
1988	5.515065118729707
1989	5.415942830281599
1990	6.669611716739798
1991	9.159924723395095
1992	8.753860011700196
1993	9.378826270052807
1994	9.915344748251306
1995	10.740072690406002
1996	10.48391019738756
1997	10.272640466795098
1998	12.345354785916932
1999	9.533585650626213
2000	10.991443626932547
2001	11.79238625882013
2002	13.368710411881388
2003	12.317302675502123
2004	11.646966318645479
2005	11.046837900305647
2006	10.113688756077657
2007	9.69019070429389
2008	8.332750122266098
2009	10.92267794513495
2010	10.25487461125634
2011	9.787299179833287
2012	10.080851446251847
2013	10.930694313930502
2014	11.56547673168777
2015	13.689549164463116
2016	14.213125661500909
2017	11.764874274332469
2018	10.44702774650738
2019	10.845438088971072
2020	12.65086001987681