Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
Year | Production | Unit of Measure | % Change |
2002 | 187198 | Thousand metric tons | NA |
2003 | 212981 | Thousand metric tons | 13.77 % |
2004 | 233994 | Thousand metric tons | 9.87 % |
2005 | 262000 | Thousand metric tons | 11.97 % |
2006 | 275000 | Thousand metric tons | 4.96 % |
2007 | 299000 | Thousand metric tons | 8.73 % |
2008 | 342000 | Thousand metric tons | 14.38 % |
2009 | 394000 | Thousand metric tons | 15.20 % |
2010 | 433000 | Thousand metric tons | 9.90 % |
2011 | 488000 | Thousand metric tons | 12.70 % |
2012 | 521000 | Thousand metric tons | 6.76 % |