Year	% of merchandise exports
1976	6.416378086692783
1977	1.7866186632044212
1978	4.212246677697694
1979	4.6424255049787115
1980	3.5760008705623307
1981	4.255122165932359
1982	3.3972979992395445
1983	2.992387604538682
1984	5.604888854148425
1985	4.487041470491753
1986	2.340232961169901
1987	1.5724701978799316
1988	2.298231344704908
1989	2.2569978906295534
1990	0.9004809194015488
1991	0.7600770869353546
1992	0.9968334467771842
1993	0.654617320932209
1994	0.9368365253316019
1996	2.1958435609761495
1997	3.6121777712303995
1998	3.9019391479688172
1999	1.319100536630916
2000	1.82818016757204
2001	1.754062156257194
2002	1.5544012821078712
2003	2.964246029675754
2004	2.11507385012059
2005	1.4758867276706293
2006	2.2425232957441623
2007	3.884290330694156
2008	2.7974275935633433
2009	1.6574607589927484