Year	% of total merchandise exports
1960	70.95719336580628
1961	70.98808275617644
1962	70.67562228368234
1963	70.21420233657136
1964	69.59779875760583
1965	72.03646484881074
1966	71.83730132216802
1967	74.99448307595513
1968	76.10499267326982
1969	77.80659014272646
1970	76.57227093387408
1971	77.00316490877447
1972	76.96548785395855
1973	75.93084081064941
1974	73.40500853523528
1975	70.58687001537226
1976	73.24285645531393
1977	74.64507542174191
1978	73.5065157731349
1979	73.77372252726401
1980	71.66168148548564
1981	71.57193315047854
1982	73.07052223761087
1983	76.79564739786609
1984	76.86972980127906
1985	77.46171800464397
1986	79.06341678742612
1987	79.548527925711
1988	78.93682738578165
1989	79.1097575691378
1990	79.99143870094339
1991	78.73498018894149
1992	77.11340832798449
1993	77.35220521668276
1994	77.15055774062817
1995	77.79161402682922
1996	77.12215172016235
1997	77.2265855611051
1998	77.05835675451242
1999	78.40711128160969
2000	77.28884561244293
2001	76.59072721690202
2002	76.39586836912976
2003	76.455467655552
2004	75.85091445318821
2005	75.63483066945307
2006	74.17299133705092
2007	73.36791098905718
2008	71.8900970220885
2009	69.76557207679123
2010	68.4381060143475
2011	67.70421547626422
2012	67.19542709446057
2013	66.42188312184042
2014	66.62547270472584
2015	66.75561549419915
2016	66.70790065352192
2017	66.32309125840838
2018	66.46263330281053
2019	67.400737942732
2020	66.57963240801433