Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
Year | Production | Unit of Measure | % Change |
2003 | 1959 | Metric tons | NA |
2004 | 2000 | Metric tons | 2.09% |
2005 | 2000 | Metric tons | 0.00% |
2006 | 2000 | Metric tons | 0.00% |
2007 | 2000 | Metric tons | 0.00% |
2008 | 2000 | Metric tons | 0.00% |
2009 | 200 | Metric tons | -90.00% |
2011 | 5129 | Metric tons | 2,464.50% |
2012 | 5000 | Metric tons | -2.52% |
2013 | 5000 | Metric tons | 0.00% |