Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 390000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 395000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 1.28 % |
| 2004 | 360000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -8.86 % |
| 2005 | 364300 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 1.19 % |
| 2006 | 404600 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 11.06 % |
| 2007 | 446000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 10.23 % |
| 2008 | 459000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 2.91 % |
| 2009 | 480000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.58 % |
