A reconciliation of net income and weighted-average shares of common stock outstanding for purposes of calculating diluted net income per share for the years ended December 31 follows:



	2013				2012				2011
Net income	$	3,441			$	3,980			$	5,747
Net income attributable to noncontrolling interests	(761		)		(939		)		(1,187		)
Preferred dividends on redeemable noncontrolling interest	(22		)		—				—
Net income attributable to FCX common stockholders	$	2,658			$	3,041			$	4,560

Weighted-average shares of common stock outstanding (millions)	1,002				949				947
Add shares issuable upon exercise or vesting of dilutive stock options and restricted stock units (millions)	4			^a	5			^a	8			^a
Weighted-average shares of common stock outstanding for purposes of calculating diluted net income per share (millions)	1,006				954				955

Diluted net income per share attributable to FCX common stockholders	$	2.64			$	3.19			$	4.78


a.	Excluded shares of common stock associated with outstanding stock options with exercise prices less than the average market price of FCX's common stock that were anti-dilutive based on the treasury stock method totaled approximately one million for the years ended December 31, 2013 and 2012, and two million for the year ended December 31, 2011.