Year	% of merchandise exports
1968	0.08592258899047603
1969	0.09215971364959033
1974	0.08678229360943332
1975	0.5783331016154216
1976	0.23132651340248758
1977	0.2772815377586308
1978	0.5815000270687345
1979	0.7331925514111569
1980	0.6458630854379649
1981	0.601432488789357
1982	1.0410297391575283
1985	3.205242605331757
1991	6.415504080648149
1992	10.156000350142797
1993	6.520206707618326
1994	8.112714057957056
1995	10.911380805143658
1996	9.439490473248242
1998	12.95330676287309
1999	9.285189757178841
2000	6.988947213752408
2001	9.672317965469805
2002	9.436556948084235
2003	9.076168778877294
2004	9.024083881521646
2005	8.044463214823098
2006	7.886318338090711
2007	8.62253359503265
2008	7.552263699426638
2009	10.298459830309683
2010	10.957735023486952
2011	10.113763905399848
2012	10.249466365768848
2013	11.054212196356383
2014	12.895021640622023
2015	18.11007487382591
2016	18.374447141208258
2017	16.707888172895426
2018	16.25363160432625
2019	16.573768957291215
2020	20.247141500333946
2021	18.892961768846206