Year	% of merchandise exports
1962	7.738187821956552
1963	7.1606236268652035
1972	46.530243142897746
1973	49.43931823649081
1974	57.879912300832814
1975	54.38505817407343
1976	57.16844742151148
1977	55.48612160813564
1978	59.398723101025695
1979	52.210761864551905
1980	62.66820586716837
1981	66.20078953621702
1982	58.989957208574005
1983	56.42254442083811
1984	53.01785159442789
1985	53.24627342537313
1986	51.94681013516266
1987	54.08920190723199
1991	13.753008115681236
1992	20.28941881934959
1993	23.681466546217965
1994	25.948785778772827
1995	25.637832267872767
1996	23.9808465584267
1997	21.50473557604719
1998	20.885604673042778
1999	18.155333512075483
2000	18.273279497768936
2001	13.899207128107241
2002	8.317862858063405
2003	6.930886901153851
2004	7.245076407646526
2005	5.110590164337641
2006	4.957444688906353
2007	4.862714682532849
2008	9.190075613662042
2009	18.059318671498847
2010	7.926485368421135
2011	3.6786395715785396
2012	13.567034254112691
2013	8.213263842545855
2014	5.23883156202557
2015	4.399433954902408
2016	4.7259135751685655
2017	3.492897566193788
2018	2.711983028057341
2019	3.376464195672831
2020	4.136776259755824
2021	3.266736586221972
2022	4.611027598790244