Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 20000 | Metric tons, lead content | NA |
| 2004 | 22000 | Metric tons, lead content | 10.00% |
| 2005 | 23000 | Metric tons, lead content | 4.55% |
| 2006 | 24000 | Metric tons, lead content | 4.35% |
| 2007 | 25000 | Metric tons, lead content | 4.17% |
| 2008 | 26905 | Metric tons, lead content | 7.62% |
| 2009 | 20000 | Metric tons, lead content | -25.66% |
| 2010 | 35000 | Metric tons, lead content | 75.00% |
| 2011 | 35000 | Metric tons, lead content | 0.00% |
| 2012 | 35000 | Metric tons, lead content | 0.00% |
