Year	% of merchandise exports
1974	7.93971161664507
1978	6.387101122699832
1979	5.958820297434964
1980	3.8912489197464533
1981	3.801952332636691
1997	6.594104158341365
1999	5.818129480176737
2000	5.038409133983025
2001	4.766147435558544
2002	4.634601631188407
2003	4.808925072298715
2004	4.626173673365455
2005	4.03100479177408
2006	3.6491288033065317
2007	2.5446247250112863
2008	3.476001188686141
2009	2.852821853007015
2010	2.1747526359934035
2011	2.3003413979098175
2012	2.2747314711194537
2013	2.042479659634783
2014	1.6752664930216756
2015	2.0162690812978425
2016	2.2447879602813763
2017	2.2359044787298235
2018	2.1463574732823574
2019	2.0148326494588393
2020	1.981092285477566
2021	1.9275392085174823
2022	1.8326505520205456
2023	2.2636312263532266