Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 42851 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 44574 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.02% |
| 2004 | 47781 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 7.19% |
| 2005 | 41452 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -13.25% |
| 2006 | 7169 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -82.71% |
