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| TABLE 5 | ||||
| STOCKS OF ALUMINA IN THE UNITED STATES, | ||||
| DECEMBER 311, 2 | ||||
| (Thousand metric tons, calcined equivalent) | ||||
| Sector | 2006 | 2007 | ||
| Producers | 87 | W | ||
| Primary aluminum plants | 855 | W | ||
| Total | 942 | r | 437 | |
| rRevised. W Withheld to avoid disclosing company proprietary���� | ||||
| data, included in "Total."�� | ||||
| 1Data are rounded to no more than three significant digits; may��� | ||||
| not add to totals shown.�� | ||||
| 2Excludes consumers stocks other than those at primary��� | ||||
| aluminum plants.�� | ||||
Source: United States Geological Survey Mineral Resources Program