Year	% of total merchandise exports
1960	94.44302829467244
1961	94.18221734357849
1966	92.7237604636188
1967	89.5049778761062
1968	85.64892848543222
1969	83.0052705173712
1970	82.49875062468766
1971	74.20959397473047
1972	80.46392517235186
1973	90.55245044490874
1974	84.56535428028646
1975	88.60486098402795
1976	93.13564233320642
1977	94.06008456243515
1978	89.95625870716633
1979	96.16257719405503
1980	95.34953988957349
1981	90.608611154775
1982	94.38160733643085
1983	88.88304141191728
1984	91.65443672600321
1985	89.61783250987233
1986	86.60038772906786
1987	86.06741991976537
1988	85.10388719602864
1989	85.14101955104317
1990	84.32162413508128
1991	86.70898114691198
1992	84.6227310138045
1993	84.44260195885437
1994	85.84748994034742
1995	84.93209720895268
1996	79.32749891568703
1997	85.47917999502276
1998	84.9654897685948
1999	83.18931575139365
2000	84.31386280524585
2001	83.98873794248536
2002	84.40334025074951
2003	86.40714061482767
2004	89.60415847114191
2005	84.32006552627385
2006	87.64521731444115
2007	85.79812312508818
2008	86.37977678466774
2009	84.82883863639852
2010	82.25198507904189
2011	81.51594603392768
2012	80.66205307467197
2013	80.30363151033836
2014	77.85261363431411
2015	79.19693163750757
2016	78.02087859466171
2017	74.50637896338564
2018	73.1739537192348
2019	74.3790954400647
2020	74.37909545955242