Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2005 | 23 | Metric tons, lead content | NA |
| 2006 | 28 | Metric tons, lead content | 21.74% |
| 2007 | 363 | Metric tons, lead content | 1,196.43% |
| 2008 | 53 | Metric tons, lead content | -85.40% |
