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Quarterly report pursuant to Section 13 or 15(d)

Stock Compensation Plans (Tables)

 v2.3.0.11
Stock Compensation Plans (Tables)
6 Months Ended
Jun. 30, 2011
Stock Compensation Plans Ìý
Estimated Fair Value for Performance Share Grants
Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

Grant Date

Ìý

Grant Date
Market Price

Ìý

Average
Expected

Term

(Years)

Ìý

Expected
Volatility

Ìý

Risk-Free
Interest Rate

Ìý

Dividend Yield

Ìý

Fair Value

Ìý

Fair Value
(Percent of
Grant Date
Market Price)

MarchÌý8, 2011 Ìý $ 96.70 Ìý 2.81 Ìý 94.4% Ìý 1.17% Ìý 0.58% Ìý $ 77.90 Ìý 80.60%