Commodity2005200620072008200920102011
Worked slate & arts. of slate/agglom. slate$4,548,135$5,262,766$6,804,944$4,090,629$4,826,374$3,221,897$5,977,465
Total$4,548,135$5,262,766$6,804,944$4,090,629$4,826,374$3,221,897$5,977,465