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Earnings per share (Tables)
 6 Months Ended
Jun. 30, 2012
Earnings per share  
Schedule of earnings per share

 

 

 

 

Three months ended June 30

 

Six months ended June 30

 

 

 

2012

 

2011

 

2012

 

2011

 

 

 

Basic and
diluted

 

Basic and
diluted

 

Basic and
diluted

 

Basic and
diluted

 

Distributed earnings

 

$

0.31

 

$

0.31

 

$

0.62

 

$

0.62

 

Undistributed earnings (loss)

 

0.09

 

(0.03

)

0.18

 

(0.04

)

 

 

$

0.40

 

$

0.28

 

$

0.80

 

$

0.58