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5. Net income per ordinary share
 12 Months Ended
Dec. 31, 2012
Notes to Financial Statements  
Net income per ordinary share
5 

Net income per ordinary share

 

The calculation of the basic and diluted net income per ordinary share is based on the following data:

 

    2012     2011     2010  
    Number of shares  
                   
Weighted average number of ordinary shares for the purposes of basic net income per share     2,070,685       2,087,922       2,099,894  
Effect of dilutive potential ordinary shares:  Stock options     5,630       14,277       43,481  
Weighted average number of ordinary shares for the purposes of diluted net income per share     2,076,315       2,102,199       2,143,375