Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 1232997 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 1372790 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 11.34 % |
| 2004 | 1209006 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -11.93 % |
| 2005 | 1201671 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -0.61 % |
| 2006 | 1203364 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.14 % |
| 2007 | 1444381 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 20.03 % |
| 2008 | 1602597 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 10.95 % |
| 2009 | 1509129 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -5.83 % |
