Three months ended September 30,

Nine months ended September 30,

2013

2012

2013

2012

Shares used in the calculation of basic earnings per share

13,682,449

13,287,463

13,534,334

13,237,629

Effect of dilutive securities:

Stock options, SARs, and RSAs, and shares held in escrow

1,276,516

1,171,691

1,139,545

1,120,162

Diluted shares used in the calculation of earnings per share

14,958,965

14,459,154

14,673,879

14,357,791