Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 6800 | Metric tons, cobalt content | NA |
| 2003 | 7300 | Metric tons, cobalt content | 7.35% |
| 2004 | 7000 | Metric tons, cobalt content | -4.11% |
| 2005 | 4590 | Metric tons, cobalt content | -34.43% |
| 2006 | 5130 | Metric tons, cobalt content | 11.76% |
| 2007 | 4730 | Metric tons, cobalt content | -7.80% |
| 2008 | 4785 | Metric tons, cobalt content | 1.16% |
| 2009 | 4345 | Metric tons, cobalt content | -9.20% |
| 2010 | 3852 | Metric tons, cobalt content | -11.35% |
| 2011 | 3848 | Metric tons, cobalt content | -0.10% |
| 2012 | 5882 | Metric tons, cobalt content | 52.86% |
