Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 16000 | Metric tons, lead content | NA |
| 2004 | 17000 | Metric tons, lead content | 6.25% |
| 2005 | 19000 | Metric tons, lead content | 11.76% |
| 2006 | 15000 | Metric tons, lead content | -21.05% |
| 2007 | 20000 | Metric tons, lead content | 33.33% |
| 2008 | 25000 | Metric tons, lead content | 25.00% |
| 2009 | 26000 | Metric tons, lead content | 4.00% |
| 2010 | 23000 | Metric tons, lead content | -11.54% |
| 2011 | 39000 | Metric tons, lead content | 69.57% |
| 2012 | 40000 | Metric tons, lead content | 2.56% |
