Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 1100 | Metric tons, lead content | NA |
| 2004 | 2750 | Metric tons, lead content | 150.00% |
| 2005 | 7700 | Metric tons, lead content | 180.00% |
| 2006 | 14900 | Metric tons, lead content | 93.51% |
| 2007 | 19200 | Metric tons, lead content | 28.86% |
| 2008 | 14200 | Metric tons, lead content | -26.04% |
| 2009 | 7700 | Metric tons, lead content | -45.77% |
| 2010 | 7400 | Metric tons, lead content | -3.90% |
| 2011 | 7400 | Metric tons, lead content | 0.00% |
| 2012 | 7400 | Metric tons, lead content | 0.00% |
