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| Sub-Chapter | 2005 | 2006 | 2007 |
| Animal or vegetable fertilisers | $156,931 | $150,997 | $441,516 |
| Mineral or chemical fertilisers, nitrogenous. | $5,231,814 | $4,459,817 | $6,771,239 |
| Mineral or chemical fertilisers, phosphatic. | $935,380 | $403,586 | $646,103 |
| Mineral or chemical fertilisers, potassic. | $616,296 | $235,307 | $758,855 |
| Mineral or chemical fertilisers | $13,681,169 | $7,457,793 | $8,067,701 |
| Total | $20,621,590 | $12,707,500 | $16,685,414 |
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