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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sulphonated/nitrated/nitrosated derivs. of hydrocarbons, whether or not hal ... | $13,905,444 | $14,540,061 | $17,363,854 | $18,418,751 | $13,625,105 | $9,298,889 | $11,248,939 |
| Sulphonated/nitrated/nitrosated derivs. of hydrocarbons, whether or not hal ... | $3,649,603 | $2,363,851 | $3,975,947 | $5,799,041 | $486,236 | $1,375,275 | $2,359,701 |
| Sulphonated/nitrated/nitrosated derivs. of hydrocarbons, whether or not hal ... | $7,804,487 | $9,021,898 | $10,702,710 | $12,823,691 | $7,684,714 | $8,278,909 | $9,786,497 |
| Total | $25,359,534 | $25,925,810 | $32,042,511 | $37,041,483 | $21,796,055 | $18,953,073 | $23,395,137 |
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