Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 43000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 40000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -6.98% |
| 2004 | 39000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -2.50% |
| 2005 | 56000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 43.59% |
| 2006 | 59000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 5.36% |
| 2007 | 71000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 20.34% |
| 2008 | 127000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 78.87% |
| 2009 | 136000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 7.09% |
| 2010 | 196000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 44.12% |
| 2011 | 160000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -18.37% |
| 2012 | 206000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 28.75% |
