Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 2780 | Metric tons, cobalt content | NA |
| 2003 | 2602 | Metric tons, cobalt content | -6.40 % |
| 2004 | 2726 | Metric tons, cobalt content | 4.77 % |
| 2005 | 1769 | Metric tons, cobalt content | -35.11 % |
| 2006 | 1629 | Metric tons, cobalt content | -7.91 % |
| 2007 | 1620 | Metric tons, cobalt content | -0.55 % |
| 2008 | 869 | Metric tons, cobalt content | -46.36 % |
| 2009 | 1000 | Metric tons, cobalt content | 15.07 % |
