Year	% of merchandise exports
1974	28.720586787263773
1978	25.13524787357006
1979	19.677445417147226
1980	15.312100644044774
1981	15.607530935230926
1997	23.98962299342726
1999	23.647363405334243
2000	19.16425973399043
2001	19.291167580848004
2002	18.343572759005173
2003	18.346541811998822
2004	17.087437566914964
2005	16.40419104601579
2006	14.814068304567083
2007	11.384058443796405
2008	14.717070832898967
2009	13.835303422303628
2010	13.57679293630665
2011	11.280953425493884
2012	12.178818726197957
2013	13.764679205536668
2014	13.392287947658465
2015	14.726101022179261
2016	15.443681663075077
2017	15.318050954405903
2018	15.097685965714188
2019	13.705383989731573
2020	14.372245678334357
2021	13.322405018805267
2022	12.848312028142194
2023	16.190656817493633