Year	% of total merchandise exports
1997	1.160864699738035
1998	1.131621963197306
1999	1.0701268021200665
2000	1.097935889616265
2001	1.072751005227076
2002	1.0184429439927398
2003	0.9875182399974964
2004	0.988791808178458
2005	1.0388817510627413
2006	1.2474912817170996
2007	1.3226134893463042
2008	1.4630184047744796
2009	1.563060809059483
2010	1.4855436739038723
2011	1.8756041635314247
2012	2.1891484211446084
2013	2.5825561024949426
2014	2.66783902967437
2015	2.5154712323071458
2016	2.2385327183812485
2017	2.370993741111848
2018	2.5217741877733917
2019	2.2905244332623327
2020	1.9850243612643248