Year	% of merchandise exports
1976	3.547292503713046
1977	5.439759903616648
1978	3.4209626394377155
1979	8.415056151480258
1980	8.202529052920138
1981	6.568662875918236
1982	1.8121657200984391
1983	0.2875123771179144
1984	0.8557003005678987
1985	3.5368587495075627
1986	6.272535393140803
1987	19.983643032583824
1988	12.054686488882858
1989	6.683826803257681
1990	6.822021007109102
1991	5.5490324875095585
1992	9.295657239750433
1993	4.243412877325942
1994	3.151107944182275
1996	6.660519141055316
1997	5.103976925689828
1998	4.917547518845055
1999	5.259619286420377
2000	8.280351229191815
2001	2.59960661235317
2002	2.313177457066318
2003	4.35601666264046
2004	6.2045361469111
2005	6.890402720163545
2006	3.800504172023654
2007	3.7789654863333877
2008	15.73775016566784
2009	7.383034700172287