Year	% of total merchandise exports
1960	23.200000000000003
1962	33.33333333333333
1963	27.55102040816326
1964	32.075471698113205
1965	32.53968253968254
1966	25.57471264367816
1967	28.346456692913385
1968	28.850152481286383
1969	27.282425833983016
1970	32.35842203341651
1971	34.408518171404765
1972	33.500129251449465
1973	33.16383818292643
1974	33.70633084246861
1975	22.113603734917312
1976	26.06713479360992
1977	18.9852853301464
1978	13.64499288087328
1979	8.803511694512867
1980	12.441814693146975
1981	17.546270173881958
1982	13.676222596964587
1983	13.059522973104087
1984	15.953035287143605
1985	17.04086774953551
1986	3.744812804403071
1987	4.673833139427968
1988	10.93424558706842
1989	12.190194311925696
1990	13.631578263382412
1991	25.19847854399512
1992	27.184777307492425
1993	24.98920673090713
1994	26.037233026705575
1995	19.216619550195524
1996	34.173437393055295
1997	28.47684478926652
1998	31.63118468514504
1999	39.091429654502235
2000	48.239374803533345
2001	45.20362916582763
2002	43.597819029780986
2003	40.798746273371606
2004	31.102256687072405
2005	29.708092540385433
2006	27.006658023846768
2007	17.302627247041777
2008	29.799828834025245
2009	30.132905509302415
2010	16.52037816009756
2011	11.718203813274467
2012	27.612541425557787
2013	34.00634800631519
2014	33.389120792241314
2015	22.978659151496796
2016	19.728446779707177
2017	82.64159882437835
2018	18.38924663107
2019	47.027875030577455
2020	64.90697402649475