Commodity2005200620072008200920102011
Chalk$1,680,000$1,520,695$2,082,087$2,450,269$3,029,927$3,681,325$4,081,909
Total$1,680,000$1,520,695$2,082,087$2,450,269$3,029,927$3,681,325$4,081,909