Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2008 | 3400 | Metric tons of rare earth oxide equivalent | NA |
| 2009 | 2600 | Metric tons of rare earth oxide equivalent | -23.53% |
| 2010 | 2300 | Metric tons of rare earth oxide equivalent | -11.54% |
| 2011 | 2500 | Metric tons of rare earth oxide equivalent | 8.70% |
| 2012 | 2400 | Metric tons of rare earth oxide equivalent | -4.00% |
