Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 14900 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 12000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -19.46% |
| 2004 | 15500 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 29.17% |
| 2005 | 17500 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 12.90% |
| 2006 | 13476 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -22.99% |
| 2007 | 12206 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -9.42% |
| 2008 | 10600 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -13.16% |
| 2009 | 9339 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -11.90% |
| 2010 | 9904 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 6.05% |
| 2011 | 10977 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 10.83% |
| 2012 | 12116 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 10.38% |
