Commodity2005200620072008200920102011
Siliceous fossil meals (e.g., kieselguhr, tripolite & diatomite) & sim. sil ...$4,222,504$3,899,834$3,442,846$2,837,035$3,256,492$2,622,338$3,296,065
Total$4,222,504$3,899,834$3,442,846$2,837,035$3,256,492$2,622,338$3,296,065