Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 99 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2004 | 14 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -85.86% |
| 2005 | 77 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 450.00% |
| 2006 | 16 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -79.22% |
| 2007 | 4067 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 25,318.75% |
| 2008 | 1836 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -54.86% |
| 2009 | 2221 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 20.97% |
| 2010 | 355 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -84.02% |
| 2011 | 743 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 109.30% |
| 2012 | 750 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.94% |
