Income Taxes

6 Months Ended

Jun. 30, 2011

Income Taxes

Income Taxes

9.  Income Taxes.Our effective tax rate for the three months ended June 30, 2011 was 35.3%, unchanged compared to 35.3% for the corresponding period of 2010.  For the six months ended June 30, 2011, our effective tax rate was 33.8%, compared to 32.6% for the comparable period of 2010.  The increase in the effective tax rate for the six-month period ended June 30, 2011, when compared to the comparable period of 2010, was primarily related to the increased profit of our U.S. operations which are taxed at a higher rate than our foreign operations income (primarily our Irish operations).