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 | Metric tons | NA |
2004 | 11 | Metric tons | 10.00% |
2005 | 10 | Metric tons | -9.09% |
2006 | 10 | Metric tons | 0.00% |
2007 | 10 | Metric tons | 0.00% |
2008 | 10 | Metric tons | 0.00% |
2008 | 9800 | Kilograms | 97,900.00% |
2009 | 11600 | Kilograms | 18.37% |
2009 | 4 | Metric tons | -99.97% |
2010 | 12500 | Kilograms | 312,400.00% |
2011 | 11600 | Kilograms | -7.20% |
2012 | 12600 | Kilograms | 8.62% |