Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 42685 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 60500 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 41.74 % |
| 2004 | 66028 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 9.14 % |
| 2005 | 69368 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 5.06 % |
| 2006 | 55455 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -20.06 % |
| 2007 | 46335 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -16.45 % |
| 2008 | 38319 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -17.30 % |
| 2009 | 38300 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -0.05 % |
