Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 2600 | Metric tons, lead content | NA |
| 2006 | 15600 | Metric tons, lead content | 500.00% |
| 2007 | 32000 | Metric tons, lead content | 105.13% |
| 2008 | 35000 | Metric tons, lead content | 9.38% |
| 2009 | 38000 | Metric tons, lead content | 8.57% |
| 2010 | 38000 | Metric tons, lead content | 0.00% |
| 2011 | 36000 | Metric tons, lead content | -5.26% |
| 2012 | 36000 | Metric tons, lead content | 0.00% |
