Year	% of total merchandise exports
1960	69.82465355885137
1961	70.56873840063727
1962	72.10255408149379
1963	72.30705749150836
1964	72.0807851199182
1965	72.86211616038564
1966	73.0027107392398
1967	73.83253689340657
1968	74.40662382437878
1969	75.04578335930907
1970	74.24248447405793
1971	74.29246402069977
1972	75.01166569699959
1973	74.64472779546153
1974	71.96121723977308
1975	68.702438410599
1976	71.30683434736957
1977	71.7177471494478
1978	71.85284668601552
1979	73.44625481663677
1980	72.05574560108198
1981	71.34288767397207
1982	72.97475812248913
1983	75.22669445532244
1984	76.63738409237946
1985	77.11788824735227
1986	78.84709017252175
1987	80.20869897875555
1988	80.2943698956634
1989	80.5502323825198
1990	80.571992529648
1991	80.60824946208864
1992	80.12075791641475
1993	79.10732044033881
1994	79.53431060280714
1995	79.56421558191734
1996	79.04785412006375
1997	79.6139500813424
1998	81.0333374903791
1999	85.03242050202472
2000	84.27077926399654
2001	83.85084350951684
2002	83.7396561016422
2003	83.38126316624285
2004	82.46727269263575
2005	81.59182901630008
2006	80.85153415685262
2007	79.90747336251592
2008	78.56086886676019
2009	77.39845587998632
2010	75.74882683091346
2011	75.16661686581521
2012	74.09768440185404
2013	73.86213469420898
2014	74.58636983925243
2015	75.44960367662425
2016	75.85621703804392
2017	75.10114546114724
2018	75.24468541111987
2019	75.60118250649327
2020	75.67531483517122