Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 1960 | Thousand metric tons of K | NA |
| 2004 | 2138 | Thousand metric tons of K | 9.08% |
| 2005 | 2224.19995117188 | Thousand metric tons of K | 4.03% |
| 2006 | 2187 | Thousand metric tons of K | -1.67% |
| 2007 | 2182 | Thousand metric tons of K | -0.23% |
| 2008 | 2170 | Thousand metric tons of K | -0.55% |
| 2009 | 1655.54504394531 | Thousand metric tons of K | -23.71% |
| 2010 | 1790.22204589844 | Thousand metric tons of K | 8.13% |
| 2011 | 1736.27404785156 | Thousand metric tons of K | -3.01% |
| 2012 | 2154 | Thousand metric tons of K | 24.06% |
