Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 1697 | Metric tons, lead content | NA |
| 2004 | 2286 | Metric tons, lead content | 34.71% |
| 2005 | 878 | Metric tons, lead content | -61.59% |
| 2006 | 672 | Metric tons, lead content | -23.46% |
| 2007 | 1305 | Metric tons, lead content | 94.20% |
| 2008 | 3985 | Metric tons, lead content | 205.36% |
| 2009 | 1511 | Metric tons, lead content | -62.08% |
| 2010 | 695 | Metric tons, lead content | -54.00% |
| 2011 | 841 | Metric tons, lead content | 21.01% |
| 2012 | 1000 | Metric tons, lead content | 18.91% |
