The fair value of stock options is estimated on the date of initial grant using the Black-Scholes valuation model. The grant date fair value and the assumptions used to value stock options granted during 2013 are as follows. There were no stock options granted in 2015 or 2014.



	Year Ended December 31
	2013
Weighted Average Grant Date Fair Value per Option	$	9.77
Expected Volatility (based on historical daily stock prices)	52		%
Expected Life (based on historical average years to exercise)	6.0 years
Expected Dividend Yield (based on the dividend rate at the date of grant)	2.14		%
Risk Free Interest Rate (based on U.S. Treasury yields at the date of grant)	1.12		%

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of performance share unit awards.

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Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References

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-Publisher FASB
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Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Tabular disclosure of the number and weighted-average grant date fair value for unvested performance shares.

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