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INCOME TAXES
9 Months Ended
Sep. 30, 2014
INCOME TAXES  
INCOME TAXES
9.     
 INCOME TAXES
 
The Company determines its periodic income tax provision (benefit) based upon the current period income and the annual estimated tax rate for the Company adjusted for any change to prior year estimates. The estimated tax rate is revised, if necessary, as of the end of each successive interim period during the fiscal year to the Company’s current annual estimated tax rate.
 
For the third quarter of 2014, the income tax provision reflects an effective tax rate of 30.1 percent, compared to an effective tax rate of 30.5 percent for the comparable period in the prior year.  For the nine months ended September 30, 2014 the income tax provision reflects an effective tax rate of 30.1 percent, compared to an effective tax rate of 24.8 percent in the comparable period in the prior year.  The effective rate for the nine months ended September 30, 2014 is the result of continued beneficial permanent differences including tax-exempt interest income and a favorable U.S. manufacturing deduction.  The effective tax rate for the nine months ended September 30, 2013 reflects both the 2013 research and experimentation credit and the full year impact of the 2012 research and experimentation credit which was retroactively enacted into law in 2013.