Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 252700 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 419000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 65.81 % |
| 2004 | 438000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.53 % |
| 2005 | 429464 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -1.95 % |
| 2006 | 425756 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -0.86 % |
| 2007 | 400898 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -5.84 % |
| 2008 | 398158 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -0.68 % |
| 2009 | 385670 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -3.14 % |
