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Net Income per Share
 12 Months Ended
Dec. 31, 2014
Net Income per Share

3. Net Income per Share

The following table sets forth the computation of basic and diluted net income per share attributable to ordinary shareholders:

 

     Years Ended December 31,  
     2012      2013      2014  

Net income attributable to ordinary shareholders—basic and diluted

      22,826,454         51,435,171         72,406,504   

Weighted average number of ordinary shares outstanding—basic

      27,751,335         27,480,150         27,873,501   

Plus: share options

      249,756         229,339         178,203   

Plus: non-vested restricted shares

      72,640         298,897         176,119   

Weighted average number of ordinary shares outstanding—diluted

      28,073,731         28,008,386         28,227,823   

Basic net income per share

      0.82         1.87         2.60   

Diluted net income per share

      0.81         1.84         2.57   

Diluted net income per share does not include the following instruments as their inclusion would be antidilutive:

 

     Years Ended December 31,  
     2012      2013      2014  

Share options

      121,784         20,000         304,045   

Restricted shares

      448,648         2,994         —     

Total

      570,432         22,994         304,045