Year	% of total merchandise exports
1960	71.40345902440403
1961	70.0680337756333
1962	71.23499094540126
1963	71.53910699857371
1964	70.44027885409466
1965	70.04636016887495
1966	72.02844558084718
1967	71.95135196387918
1968	72.57586099163943
1969	73.17891333833933
1970	74.55438916870398
1971	74.03393595225666
1972	75.84952272405933
1973	75.64672793472916
1974	72.0950585690517
1975	69.38315127103763
1976	74.28808123432817
1977	74.55513031228695
1978	74.97822227235446
1979	76.11540866270717
1980	73.84122565384243
1981	73.8514510571957
1982	74.74785208546962
1983	76.4962722801756
1984	77.99573226317176
1985	76.94173190350013
1986	79.51340629012142
1987	80.41524352066193
1988	79.92163820315793
1989	79.60313917805098
1990	78.72412872457491
1991	78.3686047950834
1992	77.07862956240629
1993	74.8439680657628
1994	74.56764146315665
1995	73.35641774181114
1996	72.47322037206445
1997	73.52606552539379
1998	75.6981575691207
1999	76.19961518067201
2000	75.40643157957561
2001	74.17451064084553
2002	73.01396350072842
2003	71.02377680190746
2004	70.04112552537029
2005	69.16062319037131
2006	68.37670192906734
2007	66.54079938158681
2008	64.93962102032957
2009	63.55041252825894
2010	61.96430131106375
2011	60.93582023723175
2012	60.759371739562404
2013	59.96881357032965
2014	60.01827471079481
2015	60.23228800326505
2016	60.26248351915666
2017	58.60384319291793
2018	58.48849688657249
2019	58.0699793918369
2020	59.16734469962975