Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
Year | Production | Unit of Measure | % Change |
2002 | 8 | Kilograms | NA |
2003 | 9 | Kilograms | 12.50% |
2004 | 162 | Kilograms | 1,700.00% |
2005 | 2770 | Kilograms | 1,609.88% |
2006 | 2800 | Kilograms | 1.08% |
2007 | 2800 | Kilograms | 0.00% |
2008 | 3300 | Kilograms | 17.86% |
2009 | 2000 | Kilograms | -39.39% |
2010 | 1774 | Kilograms | -11.30% |
2011 | 1800 | Kilograms | 1.47% |
2012 | 1800 | Kilograms | 0.00% |