Year	% of total merchandise exports
1960	74.4
1961	100
1962	57.63888888888889
1963	71.93877551020408
1964	65.56603773584906
1965	60.71428571428571
1966	71.83908045977012
1967	70.86614173228347
1968	68.95273080121986
1969	70.31718025522137
1970	64.88740090331953
1971	59.26533374986983
1972	59.33195465120574
1973	65.05405665522441
1974	64.84846185942419
1975	69.9529847556632
1976	73.43429503975086
1977	68.91930584603128
1978	78.71062343715688
1979	86.75542410704344
1980	79.4084471738313
1981	63.08077305755722
1982	84.76120211997109
1983	83.75907097188626
1984	77.44908967699003
1985	79.00406803403541
1986	95.65780473355929
1987	94.14785378320738
1988	88.06623149227005
1989	86.72757688324874
1990	85.22725797335309
1991	72.86523882910743
1992	71.38774658512081
1993	73.83392761575594
1994	73.64833774585239
1995	80.19205183469347
1996	63.81583637000057
1997	71.17028005415037
1998	68.01276200959504
1999	60.60680426380976
2000	51.11145124919548
2001	54.38018543000322
2002	55.6571876090364
2003	57.93480374734206
2004	68.18212719795955
2005	68.98503460637008
2006	69.0627629657336
2007	78.98760414184922
2008	67.59953682494768
2009	66.58823619809272
2010	68.47898606825481
2011	79.66990584816986
2012	60.34037955745124
2013	55.58852315046473
2014	54.09376748884832
2015	67.02908718056266
2016	43.71731401534551
2017	16.76289334987372
2018	33.232790521595575
2019	23.048700355688524
2020	17.221286319669886