Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 36161 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 33051 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -8.60% |
| 2004 | 27635 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -16.39% |
| 2005 | 28841 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.36% |
| 2006 | 36238 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 25.65% |
| 2007 | 36453 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.59% |
| 2008 | 40519 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 11.15% |
| 2009 | 27801 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -31.39% |
| 2010 | 27662 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -0.50% |
| 2011 | 36602 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 32.32% |
| 2012 | 26762 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -26.88% |
