Year	% of total merchandise exports
1960	88.08705612829324
1961	90.5226480836237
1962	91.34725948639326
1963	91.3071347566688
1964	85.81671548129634
1965	84.23314903721165
1966	87.4315784795314
1967	88.4884402648035
1968	87.90665901552839
1969	87.7764729102025
1970	88.67577732717407
1971	86.30389577995017
1972	86.98218857413875
1973	85.93178750980834
1974	86.93245461043503
1975	89.14963914539683
1976	89.15555832762686
1977	87.94205495970802
1978	90.93887804077038
1979	90.60504996690017
1980	89.81613485021144
1981	85.917548631644
1982	87.39269192123022
1983	88.32924388834097
1984	89.73426016957578
1985	88.98510902043142
1986	88.28975590066298
1987	85.42623898996365
1988	83.35414589453082
1989	85.0404407888685
1990	86.51508181737314
1991	83.04869794516897
1992	77.90239815918262
1993	75.31483435827198
1994	72.242678735454
1995	72.12775239507677
1996	70.88363172552128
1997	72.54858498256593
1998	52.99368947052391
1999	62.29731182857519
2000	73.13128779669354
2001	56.630867833034
2002	56.37656689321212
2003	65.23238871398553
2004	67.41206770861191
2005	67.69672094585864
2006	74.87596368742534
2007	71.2179961965588
2008	68.27439581532263
2009	60.685099222967956
2010	47.65533336146157
2011	45.64654255925303
2012	42.82316460856993
2013	43.18559583382117
2014	45.271741033369516
2015	45.18635952666713
2016	47.28593151648224
2017	46.64069818948852
2018	46.43393675884693
2019	46.44169738393766
2020	47.45151597461122