Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 17000 | Metric tons, lead content | NA |
| 2004 | 19000 | Metric tons, lead content | 11.76% |
| 2005 | 13000 | Metric tons, lead content | -31.58% |
| 2006 | 10000 | Metric tons, lead content | -23.08% |
| 2007 | 15000 | Metric tons, lead content | 50.00% |
| 2008 | 15000 | Metric tons, lead content | 0.00% |
| 2009 | 12000 | Metric tons, lead content | -20.00% |
| 2010 | 12000 | Metric tons, lead content | 0.00% |
| 2011 | 12000 | Metric tons, lead content | 0.00% |
| 2012 | 12000 | Metric tons, lead content | 0.00% |
