Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 40 | Kilograms | NA |
| 2003 | 50 | Kilograms | 25.00% |
| 2004 | 30 | Kilograms | -40.00% |
| 2005 | 30 | Kilograms | 0.00% |
| 2006 | 40 | Kilograms | 33.33% |
| 2007 | 180 | Kilograms | 350.00% |
| 2008 | 100 | Kilograms | -44.44% |
| 2009 | 50 | Kilograms | -50.00% |
| 2010 | 100 | Kilograms | 100.00% |
| 2011 | 100 | Kilograms | 0.00% |
| 2012 | 100 | Kilograms | 0.00% |
