Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 1099 | Metric tons, cobalt content | NA |
| 2003 | 1097 | Metric tons, cobalt content | -0.18% |
| 2004 | 1236 | Metric tons, cobalt content | 12.67% |
| 2005 | 1400 | Metric tons, cobalt content | 13.27% |
| 2006 | 1100 | Metric tons, cobalt content | -21.43% |
| 2007 | 1311 | Metric tons, cobalt content | 19.18% |
| 2008 | 2631 | Metric tons, cobalt content | 100.69% |
| 2009 | 2075 | Metric tons, cobalt content | -21.13% |
| 2010 | 3139 | Metric tons, cobalt content | 51.28% |
| 2011 | 3623 | Metric tons, cobalt content | 15.42% |
| 2012 | 3900 | Metric tons, cobalt content | 7.65% |
