Year	% of merchandise exports
1974	27.868266808491494
1975	28.15164993042461
1976	27.434590099206623
1977	27.205305962823974
1978	26.38150120488642
1979	23.456671334212533
1981	18.583146015585434
1996	19.141944692650586
1997	19.642673866339
1998	20.20709082929693
1999	19.98178861089149
2000	16.792114804456425
2001	17.239314544348783
2002	16.207304801951306
2003	17.112950805847376
2006	13.961583855972293
2007	11.708599034500377
2008	13.66923201207911
2009	14.31015199539408
2010	13.438556684456387
2011	11.704489567834498
2012	12.277673324281144
2013	13.049123436663336
2014	13.076029400264362
2015	14.99839353178852
2016	15.554079091104816
2017	14.87970600000194
2018	14.785006326511981
2019	13.401647017180688
2020	13.845283459024259
2021	13.48039427295624
2022	12.946319307502979