The reconciliation of the net income per common share calculation for the years ended December 31, 2012, 2011 and 2010 is as follows:

($ and shares in thousands, except per-share amounts)
	2012			2011			2010
Net income used for basic and diluted
earnings per common share:
Net income attributable to common shareholders of Frontier	$	136,636		$	149,614		$	152,673
Less: Dividends paid on unvested restricted stock awards		(2,901	)		(3,743	)		(3,072	)
Total basic and diluted net income attributable to common shareholders
of Frontier	$	133,735		$	145,871		$	149,601


Basic earnings per common share:
Total weighted-average shares and unvested restricted stock awards
outstanding - basic		997,665			994,753			653,248
Less: Weighted-average unvested restricted stock awards		(7,128	)		(4,901	)		(3,420	)
Total weighted-average shares outstanding - basic		990,537			989,852			649,828
Net income per share attributable to common shareholders
of Frontier	$	0.14		$	0.15		$	0.23

Diluted earnings per common share:
Total weighted-average shares outstanding - basic		990,537			989,852			649,828
Effect of dilutive shares		1,263			1,415			1,163
Effect of dilutive stock units		-			557			-
Total weighted-average shares outstanding - diluted		991,800			991,824			650,991
Net income per share attributable to common shareholders
of Frontier	$	0.13		$	0.15		$	0.23