Year	% of total merchandise exports
1960	3.9328794432168204
1961	4.113344596034052
1962	3.6517479573094453
1963	3.1122474830229847
1964	2.9569282817925306
1965	2.6432117286256607
1966	2.943701813633186
1967	2.8245778014603022
1968	2.912351775416279
1969	2.8639075599673562
1970	2.568369282444356
1971	2.5571237102949054
1972	2.414418876887159
1973	2.2295520560666406
1974	2.7424832820880245
1975	2.6622674353464912
1976	2.1623760890709995
1977	2.004259846567736
1978	1.9750027566911774
1979	2.1745093200241543
1980	2.244224609963732
1981	2.4299730681501175
1982	1.928036145156838
1983	1.6823091869574327
1984	1.6066188211038452
1985	1.4798926463897617
1986	1.5103881808277524
1987	1.367621608409505
1988	1.2008910075000874
1989	1.265464507867849
1990	1.2394190225760902
1991	1.4058967975028105
1992	1.5401908196366683
1993	1.790536456024702
1994	1.950245237456269
1995	1.8688759290814025
1996	1.9025948304777207
1997	2.024813685821811
1998	2.119910698568739
1999	1.8481028564178548
2000	1.850085328979831
2001	1.864484902710397
2002	1.5871178773831947
2003	1.4139877660008566
2004	1.3905093581292671
2005	1.489611983420573
2006	1.517251885405118
2007	1.5795444458234922
2008	1.7029665813716586
2009	1.6293890344121167
2010	1.9212110385469126
2011	1.969667010616983
2012	2.1464082081633222
2013	2.1878429121799767
2014	2.0695615571817516
2015	2.0824627371085853
2016	1.9602975952809367
2017	2.0017550164506916
2018	1.9558340193330053
2019	1.9032049881816904
2020	1.7104568106779707