Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2005 | 50 | Metric tons | NA |
| 2006 | 60 | Metric tons | 20.00% |
| 2007 | 70 | Metric tons | 16.67% |
| 2008 | 75 | Metric tons | 7.14% |
| 2008 | 145000 | Kilograms | 193,233.30% |
| 2009 | 160000 | Kilograms | 10.34% |
| 2009 | 70 | Metric tons | -99.96% |
| 2010 | 145000 | Kilograms | 207,042.80% |
| 2011 | 155000 | Kilograms | 6.90% |
| 2012 | 165000 | Kilograms | 6.45% |
