Year	% of total merchandise exports
1960	22.92343387470998
1961	33.19067998097955
1962	19.148089171974522
1963	21.919937815779246
1964	26.776933392936968
1965	26.625824693685203
1966	16.774891774891778
1967	19.028974158183242
1968	10.127737226277372
1969	6.839366429900863
1970	12.654318072334677
1971	11.515661948106636
1972	3.9862732979865334
1973	6.712340314657715
1974	22.617061419238148
1975	21.81768824298133
1976	35.2617122800459
1977	19.000338154070835
1978	11.91694417745156
1979	19.01743346134666
1980	14.95525710898761
1981	12.935221900686583
1982	12.935221900610708
1983	12.935221901173815
1984	12.93522190116132
1985	12.935221902316318
1986	12.935221898167498
1987	12.935221896403451
1988	12.93522190505815
1989	12.935221901079764
1990	25.86735231432733
1991	22.599091320311093
1992	22.093809971683548
1993	25.579758879003695
1994	23.885807791632757
1995	26.141724350107392
1996	20.476971753636516
1997	13.311984828660087
1998	11.61736329736788
1999	20.09794970376795
2000	12.88608957701517
2001	24.294782587027754
2002	26.14394946225979
2003	28.220094893059724
2004	37.90703530206489
2005	42.993298356194806
2006	46.966619638709446
2007	45.16979891263766
2008	54.16444348249178
2009	48.44576599194787
2010	50.65026457006056
2011	62.361243587672234
2012	47.676860013521555
2013	70.08214377519589
2014	76.53520506342366
2015	72.0390955567621
2016	63.91516266049898
2017	61.64346610216261
2018	55.56653504452842
2019	53.761085528717736
2020	53.351637061018685