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| Product | 2001 | 2002 | 2003 | 2004 | 2005 |
| Petroleum oils and oils obtained from bituminous minerals (other than crude); preparations, n.e.s., containing by weight 70% or more of petroleum oils or of oils obtained from bituminous minerals, these oils being the basic constituents of the preparations | $30,578,000 | $9,159,000 | $30,550,000 | $127,443,000 | $14,827,000 |
| Residual petroleum products, n.e.s., and related materials | $55,000 | $34,000 | $39,000 | $100,000 | $130,000 |
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