Year	% of total merchandise exports
1960	9.011211567400522
1961	9.671143701597517
1962	8.558555424245432
1963	11.790987328951585
1964	10.546378624202784
1965	10.246694569513172
1966	10.865109386111161
1967	10.959135285395938
1968	13.884919537208408
1969	10.866263502908318
1970	11.299310520979505
1971	8.463938638010337
1972	9.041955633534375
1973	10.919808148054862
1974	12.350102101747515
1975	16.464374930290344
1976	17.580223668951017
1977	16.385216268023544
1978	12.062530759623588
1979	14.765252425818097
1980	18.7128250563402
1981	15.583815357145111
1982	10.638000797773246
1983	11.512409579177044
1984	12.956739241961026
1985	8.938955382941954
1986	12.384770599266623
1987	10.84335478915029
1988	10.316492829856877
1989	9.711476547404642
1990	7.791539122036539
1991	9.628434791585278
1992	8.572524292352977
1993	5.074234177361709
1994	8.238115328218552
1995	7.365469189212201
1996	6.913191443375346
1997	2.249007022893534
1998	2.2662427205366638
1999	1.2023101623783459
2000	3.643841253972671
2001	4.612439441856513
2002	4.7115850918599795
2003	3.4625080991519646
2004	2.9490031650063044
2005	2.7688302828573033
2006	2.4869879290000276
2007	2.200422996148064
2008	2.0791477739527773
2009	1.9914479624848627
2010	1.992457058288527
2011	1.9347190260034948
2012	1.6111508307537763
2013	1.9682313994921503
2014	2.248462039362901
2015	1.8862052186545675
2016	2.0220856883472407
2017	1.1835214934539242
2018	1.3701504796553015
2019	0.7721300635982238
2020	0.8254020812324968