Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 3442 | Metric tons, cobalt content | NA |
| 2003 | 3274 | Metric tons, cobalt content | -4.88% |
| 2004 | 3554 | Metric tons, cobalt content | 8.55% |
| 2005 | 4798 | Metric tons, cobalt content | 35.00% |
| 2006 | 5602 | Metric tons, cobalt content | 16.76% |
| 2007 | 4540 | Metric tons, cobalt content | -18.96% |
| 2008 | 4000 | Metric tons, cobalt content | -11.89% |
| 2009 | 4600 | Metric tons, cobalt content | 15.00% |
| 2010 | 4800 | Metric tons, cobalt content | 4.35% |
| 2011 | 5100 | Metric tons, cobalt content | 6.25% |
| 2012 | 4900 | Metric tons, cobalt content | -3.92% |
