Commodity2005200620072008200920102011
Worked slate & arts. of slate/agglom. slate$2,547,607$4,967,726$5,814,683$5,537,923$8,650,413$7,063,533$6,205,719
Total$2,547,607$4,967,726$5,814,683$5,537,923$8,650,413$7,063,533$6,205,719