Schedule II-Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2011

Valuation and Qualifying Accounts

Valuation and Qualifying Accounts

SCHEDULE II

Valuation and Qualifying Accounts
Years ended December 31, 2011, 2010 and 2009:

			Additions					Deductions From Reserve
					Charged to Other Accounts
	Balance At Beginning Of Period		Charged To Income		Description	Amount		Description	Amount		Balance At Close of Period
Year ended December 31, 2011:
Reserve deducted from assets: accumulated provision for uncollectible accounts.	$	865,236	$	3,737,630	Recovery of amounts previously written off	$	1,847,527	Accounts written off	$	5,312,749	$	1,137,644
Year ended December 31, 2010:
Reserve deducted from assets: accumulated provision for uncollectible accounts.	$	1,086,853	$	3,607,066	Recovery of amounts previously written off	$	833,113	Accounts written off	$	4,661,796	$	865,236
Year ended December 31, 2009:
Reserve deducted from assets: accumulated provision for uncollectible accounts.	$	1,265,421	$	3,109,679	Recovery of amounts previously written off	$	1,531,820	Accounts written off	$	4,820,067	$	1,086,853