Year	% of total merchandise exports
1992	9.144377785597175
1993	16.918587328830412
1994	9.15895485362268
1995	11.098307808776296
1996	15.1534300415952
1997	21.886789801667874
1998	18.844513377278016
1999	21.43406000431686
2000	17.89907919011328
2001	19.388454965889654
2002	21.050472762866132
2003	18.985156542386825
2004	19.389943646851062
2005	20.465931652913714
2006	17.452525827827664
2007	15.881792893043873
2008	16.896483148557778
2009	25.77644324649145
2010	22.047427717457754
2011	21.540104140965887
2012	24.09064683098462
2013	23.55895574565567
2014	25.103005098877208
2015	28.304694090517252
2016	30.95551625514341
2017	27.45929435081882
2018	27.137865413911822
2019	29.4854372806822
2020	35.36456365531437
