Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 10 | Kilograms | NA |
| 2004 | 5 | Kilograms | -50.00 % |
| 2005 | 10 | Kilograms | 100.00 % |
| 2006 | 30 | Kilograms | 200.00 % |
| 2007 | 50 | Kilograms | 66.67 % |
| 2008 | 72 | Kilograms | 44.00 % |
| 2009 | 70 | Kilograms | -2.78 % |
