Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 9740 | Metric tons, lead content | NA |
| 2004 | 10267 | Metric tons, lead content | 5.41 % |
| 2005 | 11231 | Metric tons, lead content | 9.39 % |
| 2006 | 11955 | Metric tons, lead content | 6.45 % |
| 2007 | 22798 | Metric tons, lead content | 90.70 % |
| 2008 | 81602 | Metric tons, lead content | 257.93 % |
| 2009 | 86394 | Metric tons, lead content | 5.87 % |
