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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon disulphide | $1,831,201 | $1,995,756 | $4,320,302 | $7,749,570 | $8,401,362 | $6,872,978 | $7,943,791 |
| Sulphides of non-metals (excl. carbon disulphide); commercial phosphorus tr ... | $9,432,763 | $13,583,691 | $7,839,742 | $8,503,212 | $6,968,905 | $8,338,005 | $7,692,167 |
| Total | $11,263,964 | $15,579,447 | $12,160,044 | $16,252,782 | $15,370,267 | $15,210,983 | $15,635,958 |
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