Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2005 | 11400 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2006 | 54850 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 381.14% |
| 2007 | 77350 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 41.02% |
| 2008 | 71800 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -7.18% |
| 2009 | 78800 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 9.75% |
| 2010 | 56300 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -28.55% |
| 2011 | 52300 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -7.10% |
| 2012 | 59600 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 13.96% |
