Stock-Based Compensation Plans (Tables)

6 Months Ended

Nov. 30, 2013

Option Transactions

A summary of option transactions for the six-month period ended November 30, 2013, follows:

	Shares Under Option		Weighted-Average Option Price
Outstanding at May 31, 2013	1,508,533		$	40.68
Exercised	(35,592	)	$	40.32
Canceled	(25,300	)	$	64.21
Outstanding at November 30, 2013	1,447,641		$	40.28
Exercisable at November 30, 2013	828,221		$	45.50

Stock Options Outstanding

The following table summarizes information about stock options outstanding as of November 30, 2013.

	Range of Exercise Prices
	$16.04 - $29.38		$33.57 - $48.60		$50.63 - $70.18
Options outstanding
Shares outstanding	495,032		591,919		360,690
Weighted-average remaining life in years	6.94		5.57		2.96
Weighted-average exercise price	$	27.64	$	39.58	$	58.76
Options exercisable
Shares exercisable	167,102		300,429		360,690
Weighted-average remaining life in years	5.71		4.40		2.96
Weighted-average exercise price	$	25.95	$	40.44	$	58.76