Year	% of total merchandise exports
2000	7.2650284148102555
2001	5.020064382155708
2002	6.265758785686493
2003	5.3504092779789
2004	6.220162491815637
2005	7.730354614905378
2006	9.279863538187852
2007	6.7785256604699295
2008	8.207421175630966
2009	9.115075551332389
2010	11.447075360768727
2011	9.918919069855143
2012	13.911479788449835
2013	9.365435566998066
2014	11.93284836369058
2015	12.646240621767477
2016	12.847548175245347
2017	13.282237651036304
2018	12.428204315693012
2019	13.557974412990099
2020	16.507337927464402