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 | 2110 | Metric tons, cobalt content | 30.25% |
| 2009 | 2000 | Metric tons, cobalt content | -5.21% |
| 2010 | 2850 | Metric tons, cobalt content | 42.50% |
| 2011 | 3100 | Metric tons, cobalt content | 8.77% |
| 2012 | 2620 | Metric tons, cobalt content | -15.48% |
