Commodity200520062007200820102011
Natural sodium borates & concs. thereof (whether or not calcined)$15,017$10,246$5,986$5,260$2,300 
Natural borates & concs. thereof (excl. sodium borates), whether or not cal ...  $20,341$18,943 $137,099
Total$15,017$10,246$26,327$24,203$2,300$137,099