Commodity2005200620072008200920102011
Worked slate & arts. of slate/agglom. slate$408,795$460,357$2,673,873$1,778,090$1,439,411$2,070,536$3,861,091
Total$408,795$460,357$2,673,873$1,778,090$1,439,411$2,070,536$3,861,091