Year	% of total merchandise exports
1960	0.04041109873988934
1961	0.10643301735265742
1962	0.10230612633156504
1963	0.1237449058347098
1964	0.13659095573770078
1965	0.09605446332335163
1966	0.1077360440363334
1967	0.1953745752957813
1968	0.2298441696474526
1969	0.3231889465842043
1970	0.32483707300238474
1971	0.5971773101788973
1972	1.1547121708681631
1973	1.0715974116753206
1974	0.9452445903458481
1975	1.0843061881662155
1976	0.30895571356235685
1977	0.3099987567628299
1978	0.19354718718429476
1979	0.4006857135713588
1980	0.5564822804635822
1981	1.650497232537039
1982	1.2670416970759326
1983	2.155767321021674
1984	1.2664153706053767
1985	1.4560945064063633
1986	1.147626613053074
1987	0.9129547028057733
1988	1.8521887391853877
1989	0.6569877045298822
1990	0.8105070470875168
1991	1.5436174202016621
1992	0.618205717484783
1993	1.0344833615128564
1994	0.8746111054969262
1995	1.73765623505946
1996	2.913090716393827
1997	1.3822003654317867
1998	1.1038907238952937
1999	1.0014222066187601
2000	1.2967111916893388
2001	1.0926622411958857
2002	1.0722050972558634
2003	1.0883195503917107
2004	1.0110785922522019
2005	0.899262946974895
2006	0.9120484064311254
2007	0.9918472244611988
2008	0.5754029773772122
2009	0.6326227685804617
2010	0.8235259162361328
2011	0.89063103086296
2012	1.2336553801139987
2013	0.6583476115590329
2014	0.8492568624062687
2015	0.4521166090288594
2016	0.680827147424348
2017	0.7931830604343437
2018	0.5625601786597973
2019	0.6968964208540844
2020	0.510304009263519