Year	% of total merchandise exports
1995	26.253659923399432
1996	17.739496702398156
1997	14.019147195608653
1998	25.097738722634272
1999	21.426782173239424
2000	31.92872494664787
2001	29.72286805187731
2002	22.569283656607
2003	14.351129486817632
2004	11.801119996192844
2005	13.431668603661578
2006	13.03881788110141
2007	20.846703704544762
2008	22.025259049131044
2009	20.19306662710244
2010	31.100226770961857
2011	43.26484538201312
2012	42.18200509873645
2013	41.58805199408121
2014	38.43171394060323
2015	40.16536262030355
2016	27.799170537599917
2017	28.88462344768422
2018	27.75027420681907
2019	15.319361241239932
2020	21.11860928303935