Year	% of merchandise exports
1962	21.16691043790461
1963	19.030730237405933
1964	15.327344370566163
1965	17.3867666999246
1966	16.19848661053206
1967	14.999034193654893
1968	11.764865143742533
1969	11.024816053020965
1970	10.889358911356153
1971	9.326271232506526
1972	9.950982730594154
1973	7.011957750691726
1974	5.230431555997569
1975	7.556622626820911
1976	5.914916557127713
1977	4.392068690199932
1978	2.411447792212874
1979	5.033619484404957
1980	1.880141183698048
1982	1.7745169527026734
1986	8.256346010234752
1987	8.55211544131559
1990	6.878977729979498
1995	8.36562564417253
1996	6.365072233135644
1997	5.739267572916746
2000	5.591910066856559
2001	5.374322414609354
2002	4.32423576866907
2003	4.1575429971374875
2004	5.065537896776755
2005	4.782054027913162
2006	4.907594450363311
2007	6.161859820863038
2008	12.708129027667884
2009	7.390407890023043
2010	3.605104448728725
2011	6.446019465085112
2012	2.13266836486717
2013	2.0784827431829167
2014	3.963613992553995
2015	4.573875190480927
2016	7.282053056276595
2017	5.590937800532551
2018	3.699454052082798
2019	2.8767804988206724
2020	3.30322583764507
2021	2.020336378586603