Year	% of total merchandise exports
1960	80.62130177514793
1961	79.87421383647799
1962	78.86029411764706
1963	73.7442922374429
1964	51.54777927321669
1965	52.70425776754891
1966	72.40259740259741
1967	55.66382460414129
1968	42.64538198403649
1970	53.19936541512428
1981	45.057471254935926
1982	40.01486159377003
1983	62.5553214393746
1984	71.34058391786928
1985	36.62965887033492
1986	36.96474946253365
1987	15.650062837508017
1988	23.11647927286009
1989	16.173229428579454
1990	13.635149169377927
1991	48.661838013390856
1992	33.641010327591644
1993	52.767122105077625
1994	30.93209220826842
1995	34.45442832555768
1996	64.2531765937582
1997	43.44220382857691
1998	66.09962506695233
1999	60.535930619387344
2000	93.80169757023656
2001	95.39559995052646
2002	95.48377813841483
2003	95.97197641656959
2004	96.48516703126822
2005	96.5402330843531
2006	95.82016159288642
2007	95.27031984718657
2008	93.2661047532998
2009	95.0949511693441
2010	91.71448912550832
2011	89.25662812796286
2012	78.57878426144383
2013	87.25660293928803
2014	87.26725373403319
2015	83.98173516276644
2016	83.17318818549587
2017	81.76644629315123
2018	83.47274466906272
2019	83.13510907941465
2020	84.6903653240773