Three Months Ended
September 30

Nine Months Ended
September 30

(In thousands, except per share amounts)

2011

2010

2011

2010

Net income attributable to Mine Safety Appliances Company

$

19,972

$

9,603

$

52,873

$

26,336

Preferred stock dividends

(10

)

(10

)

(30

)

(30

)

Income available to common equity

19,962

9,593

52,843

26,306

Dividends and undistributed earnings allocated to participating securities

(217

)

(96

)

(572

)

(258

)

Income available to common shareholders

19,745

9,497

52,271

26,048

Basic earnings per common share

$

0.54

$

0.27

$

1.44

$

0.73

Diluted earnings per common share

$

0.54

$

0.26

$

1.42

$

0.72

Basic shares outstanding

36,236

35,917

36,206

35,819

Stock options and other stock compensation

563

474

611

547

Diluted shares outstanding

36,799

36,391

36,817

36,366

Antidilutive stock options

896

1,263

896

1,263