Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 828 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2004 | 5067 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 511.96% |
| 2005 | 7588 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 49.75% |
| 2006 | 16831 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 121.81% |
| 2007 | 18500 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 9.92% |
| 2008 | 15465 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -16.41% |
| 2009 | 19636 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 26.97% |
| 2010 | 9223 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -53.03% |
| 2011 | 14758 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 60.01% |
| 2012 | 10572 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -28.36% |
