Year	% of total exports
1995	17.51865224953633
1996	16.962201371110297
1997	16.992797512781266
1998	18.802695019438566
1999	17.88974205097421
2000	17.967344929002618
2001	18.658079472475187
2002	18.112637186634558
2003	16.924763360169777
2004	16.88269809186472
2005	16.817197625134373
2006	16.481682886017467
2007	17.090183913713535
2008	16.888040895151583
2009	18.44470799944954
2010	18.03261005674991
2011	17.37279091578612
2012	17.67133435462406
2013	17.676007974952675
2014	18.81187940218845
2015	19.541251404502432
2016	20.704905139577466
2017	22.659976294934893
2018	23.03863051477983
2019	23.45542177849293
2020	12.360218617502085