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Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 120000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 110000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -8.33% |
| 2004 | 121000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 10.00% |
| 2005 | 167000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 38.02% |
| 2006 | 164000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -1.80% |
| 2007 | 100000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -39.02% |
| 2008 | 69267 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -30.73% |
| 2009 | 72048 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.01% |
| 2010 | 80000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 11.04% |
| 2011 | 80000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.00% |
| 2012 | 80000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.00% |
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