Year	% of total merchandise exports
1960	70.67307100696898
1961	71.34738868974839
1962	72.57223777179101
1963	72.84004938618448
1964	72.38705183166246
1965	72.92623775757602
1966	73.3781948710898
1967	74.33711064501914
1968	74.44458493448931
1969	75.03976016099186
1970	74.4603822254239
1971	74.56152029367813
1972	75.0322520766532
1973	74.97217943507755
1974	73.33040957408461
1975	70.31441154316799
1976	73.08206091092904
1977	73.29057049892864
1978	73.37370023539822
1979	74.91482240654514
1980	73.6559226000946
1981	72.56679048403004
1982	73.35372670788499
1983	74.95984038513723
1984	75.88620760724588
1985	76.21701118995506
1986	77.98823719908938
1987	79.14496224063369
1988	78.87061533721584
1989	79.3010593786468
1990	79.40320980812109
1991	79.59658314797026
1992	78.71423337875476
1993	77.71125331427938
1994	77.47170287211421
1995	76.9417098134084
1996	76.58534105795492
1997	77.36899492279939
1998	78.6652111446794
1999	82.08862911970992
2000	80.46735531834462
2001	80.06082192123235
2002	79.71467597169327
2003	79.01586081159232
2004	77.98831365005732
2005	76.85036577816275
2006	76.07225955558972
2007	74.68306083563166
2008	72.99312469377472
2009	71.97572704069884
2010	70.22596101918568
2011	69.14561793977525
2012	68.35117346858273
2013	68.00890283790648
2014	68.3886068843108
2015	69.19706874595968
2016	69.70358827909806
2017	68.49137504602166
2018	68.2189368935263
2019	68.18972125486872
2020	68.4526776808913