Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 46339 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 43766 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -5.55% |
| 2004 | 41413 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -5.38% |
| 2005 | 42698 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 3.10% |
| 2006 | 37646 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -11.83% |
| 2007 | 29211 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -22.41% |
| 2008 | 28462 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -2.56% |
| 2009 | 36370 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 27.78% |
| 2010 | 33839 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -6.96% |
| 2011 | 26000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -23.17% |
| 2012 | 26000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.00% |
