Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2005 | 3000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2006 | 2932 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -2.27% |
| 2007 | 2585 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -11.83% |
| 2008 | 7467 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 188.86% |
| 2009 | 6989 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -6.40% |
| 2010 | 14361 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 105.48% |
| 2011 | 15588 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 8.54% |
| 2012 | 10075 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -35.37% |
