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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2014
Stock-Based Compensation  
Schedule of weighted-average assumptions for stock options

 

 

 

2014

 

2013

 

Expected dividend yield

 

1.2

%

1.2

%

Expected life in years

 

5.74

 

5.71

 

Expected volatility

 

29.3

%

32.2

%

Risk-free interest rate

 

1.7

%

1.0

%

Weighted average fair value

 

$

19.15

 

$

17.58