Year	% of total merchandise exports
1992	1.1738925038820511
1993	9.067824711689513
1994	49.45083402695311
1995	44.24628532813458
1996	46.67749675003019
1997	48.17815033473323
1998	37.23309410862501
1999	19.966518208998828
2000	16.324342319852633
2001	19.450879761577124
2002	20.807271614430338
2003	18.087843397004438
2004	19.10952747189278
2005	20.36859414420374
2006	23.74098659388956
2007	27.328581441055487
2008	30.350952355317567
2009	27.806598894970552
2010	30.187006005352522
2011	31.43174022267543
2012	33.91129335120464
2013	35.417509352869324
2014	36.807720595794024
2015	27.72744031388303
2016	27.23555955649169
2017	29.41380174028947
2018	27.929721360173147
2019	29.283268206352496
2020	28.690545268704206