Commodity200520062008200920102011
Potassium carbonates    $864 
Calcium carbonate$947$435$1,385$10,190$380,514 
Carbonates (excl. of 2836.10-2836.92); peroxocarbonates (percarbonates)  $8,000$16,500$105$34,360
Total$947$435$9,385$26,690$381,483$34,360