Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 136339 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 152822 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 12.09 % |
| 2004 | 158962 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.02 % |
| 2005 | 170659 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 7.36 % |
| 2006 | 185211 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 8.53 % |
| 2007 | 193887 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.68 % |
| 2008 | 173933 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -10.29 % |
| 2009 | 174000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.04 % |
