
	Outstanding						Exercisable
Range of Exercise Prices	Number of Shares		Weighted-Average Remaining Contractual Life		Weighted-Average Exercise Price		Number of Shares		Weighted-Average Exercise Price
$ 1.29-$36.49		477,658		4.91 years	$	32.25		382,829	$	31.67
$ 36.80-$41.25		384,646		5.06 years		39.80		377,221		39.85
$ 42.28-$45.62		401,316		3.49 years		44.51		401,316		44.51
$ 46.18-$51.62		374,856		2.70 years		48.63		374,856		48.63
$ 53.92-$53.92		1,800		2.16 years		53.92		1,800		53.92

		1,640,276						1,538,022


	Outstanding		Exercisable
Aggregate intrinsic value	$	3,160,000	$	2,785,000
Weighted-average remaining contractual term		4.1 years		4.0 years

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

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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 stock appreciation rights awards that were outstanding at the beginning and end of the year, and the number of stock appreciation rights awards 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 employee stock purchase plans, including, but not limited to: (a) expected term, (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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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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Tabular disclosure of the total compensation cost related to nonvested awards not yet recognized and the weighted-average period over which it is expected to be recognized.

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