Stock-Based Compensation (Tables)

The following table summarizes activity related to stock options during 2015:

	Number of Options			Weighted˗Average Exercise Price Per Share		Aggregate Intrinsic Value		Weighted˗Average Remaining Term
Outstanding at October 31, 2014		1,686		$	42.77
Granted		316		$	79.66
Exercised		(211	)	$	27.60
Forfeited or expired		(32	)	$	68.38
Outstanding at October 31, 2015		1,759		$	50.74	$	38,727	6.0 years
Vested at October 31, 2015 or expected to vest		1,745		$	50.54	$	38,721	6.0 years
Exercisable at October 31, 2015		1,039		$	37.62	$	34,975	4.6 years

Summarized information on currently outstanding options follows:

	Range of Exercise Price
	$14 - $28		$29 - $44		$45 - $81
Number outstanding		442		506		811
Weighted-average remaining contractual life, in years	2.9		5.4		8.1
Weighted-average exercise price	$	22.82	$	41.78	$	71.57
Number exercisable		442		416		181
Weighted-average exercise price	$	22.82	$	41.38	$	65.14

The fair value of each option grant was estimated at the date of grant using the Black-Scholes option-pricing model with the following assumptions:

2015

2014

2013

Expected volatility

30.3-39.5%

40.1%˗44.7%

45.3%˗46.9%

Expected dividend yield

1.06-1.10%

0.98%˗1.03%

0.97%˗1.01%

Risk-free interest rate

1.57%˗1.85%

1.51%˗1.79%

0.75%˗0.90%

Expected life of the option (in years)

5.4˗6.1

The following table summarizes activity related to restricted shares during 2015:

	Number of Shares			Weighted˗Average Grant Date Fair Value Per Share
Restricted at October 31, 2014		71		$	63.53
Granted		24		$	78.64
Forfeited		(5	)	$	75.30
Vested		(37	)	$	58.04
Restricted at October 31, 2015		53		$	73.23

The following table summarizes activity related to restricted share units in 2015:

	Number of Units			Weighted˗Average Grant Date Fair Value
Restricted share units at October 31, 2014		5		$	61.59
Granted		13		$	76.19
Vested		(18	)	$	71.83
Restricted share units at October 31, 2015		0		$	—

The following table summarizes activity related to director deferred compensation share equivalent units during 2015:

	Number of Shares			Weighted˗Average Grant Date Fair Value Per Share
Outstanding at October 31, 2014		110		$	29.74
Restricted stock units vested		12		$	69.51
Dividend equivalents		1		$	73.46
Distributions		(23	)	$	21.97
Outstanding at October 31, 2015		100		$	36.76