Year	% of total merchandise exports
1960	77.79357406880865
1961	77.29002048580628
1962	77.07246376811592
1963	79.60578186596582
1964	79.32077227262154
1965	82.08119458702753
1966	78.8945895522388
1967	80.26440037771482
1968	79.83212341197822
1969	79.9945925710245
1970	80.24778613894317
1971	74.43992471616781
1972	75.88227001456744
1973	76.94755321483431
1974	72.65940499773686
1975	72.15046085940543
1976	73.4704720819026
1977	72.10092188258128
1978	75.14331040366875
1979	76.22451146433806
1980	71.86718954683256
1981	67.45613919923679
1982	70.32365402100946
1983	69.50756651803573
1984	67.3531310522918
1985	68.16775191799368
1986	68.1493502501875
1987	68.3878152458816
1988	71.53899856084907
1989	72.86433066074905
1990	67.60867498144906
1991	66.40441967381649
1992	68.12933838763819
1993	75.09538141723449
1994	72.03855558346112
1995	71.34726482274496
1996	68.81597546855953
1997	67.26734708639893
1998	68.88045113146764
1999	81.07140937710486
2000	86.03919345245443
2001	84.45225194011283
2002	84.94328492875229
2003	85.51268788900678
2004	83.08987920934649
2005	81.41375647107681
2006	80.81907168200708
2007	81.27039307091013
2008	72.33040933885272
2009	75.17873797625525
2010	71.09561346581548
2011	67.71277035270856
2012	67.13942840543994
2013	71.14172250414813
2014	72.70434837820895
2015	70.75528267991727
2016	73.63920360375464
2017	73.92630365106756
2018	73.35318151238387
2019	73.84901285201583
2020	75.38320858471107