Year	% of total merchandise exports
1997	1.393831396396655
1998	1.0185896001127535
1999	1.2069782524666322
2000	1.3701420336367023
2001	1.4812667295316646
2002	1.5246273720667494
2003	1.640746150776886
2004	1.5337326535335034
2005	1.550052177984127
2006	1.5586210062220864
2007	1.6013451410054786
2008	1.7318750751029894
2009	2.240831173093141
2010	2.4675675149862153
2011	2.8800620021270604
2012	2.9554245873064238
2013	2.8497062913440936
2014	2.8733253348214283
2015	2.7250650250352155
2016	2.790552056594011
2017	3.0148544386644787
2018	2.8312685082684306
2019	2.6683773879949166
2020	3.185903475417488