Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 446104 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 413991 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -7.20 % |
| 2004 | 426360 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 2.99 % |
| 2005 | 476307 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 11.71 % |
| 2006 | 432347 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -9.23 % |
| 2007 | 426509 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -1.35 % |
| 2008 | 397306 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -6.85 % |
| 2009 | 390000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -1.84 % |
