Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 37325 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 29839 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -20.06 % |
| 2004 | 27220 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -8.78 % |
| 2005 | 30227 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 11.05 % |
| 2006 | 29808 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -1.39 % |
| 2007 | 27025 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -9.34 % |
| 2008 | 30349 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 12.30 % |
| 2009 | 30000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -1.15 % |
