Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 27172 | Metric tons of contained vanadium | NA |
| 2004 | 23302 | Metric tons of contained vanadium | -14.24% |
| 2005 | 22601 | Metric tons of contained vanadium | -3.01% |
| 2006 | 23780 | Metric tons of contained vanadium | 5.22% |
| 2007 | 24000 | Metric tons of contained vanadium | 0.93% |
| 2009 | 14353 | Metric tons of contained vanadium | -40.20% |
| 2010 | 22606 | Metric tons of contained vanadium | 57.50% |
| 2011 | 21652 | Metric tons of contained vanadium | -4.22% |
| 2012 | 19957 | Metric tons of contained vanadium | -7.83% |
| 2013 | 21000 | Metric tons of contained vanadium | 5.23% |
