Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 1381 | Metric tons, tungsten content | NA |
| 2004 | 1335 | Metric tons, tungsten content | -3.33% |
| 2005 | 1280 | Metric tons, tungsten content | -4.12% |
| 2006 | 1153 | Metric tons, tungsten content | -9.92% |
| 2007 | 1117 | Metric tons, tungsten content | -3.12% |
| 2008 | 1122 | Metric tons, tungsten content | 0.45% |
| 2009 | 887 | Metric tons, tungsten content | -20.94% |
| 2010 | 977 | Metric tons, tungsten content | 10.15% |
| 2011 | 861 | Metric tons, tungsten content | -11.87% |
| 2012 | 706 | Metric tons, tungsten content | -18.00% |
| 2013 | 850 | Metric tons, tungsten content | 20.40% |
