Year	% of merchandise exports
1978	1.2276178525268955
1979	1.2134149219958026
1991	0.41765336810255793
1992	0.396637471564639
1993	0.3235441538159249
1999	0.4512679288869947
2000	0.3140510432157705
2001	0.3380249378477963
2002	0.3855680512410716
2003	0.36379972870819705
2004	0.3030626091536734
2005	0.24082957699018015
2006	0.1843989476609212
2007	0.16589752807845645
2008	0.14345365015163852
2009	0.18079757696937288
2010	0.21939514099983845
2011	0.18297667079172192
2012	0.17706448250769058
2013	0.19550333034625111
2014	0.19187666802280912
2015	0.22209665562502856
2016	0.20834551495391224
2017	0.21132389528942924
2018	0.20814723216267797
2019	0.20977555806639392
2020	0.2395965400566658
2021	0.22735372371987644