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Income Taxes
3 Months Ended
Mar. 31, 2025
Income Taxes  
Income Taxes

9.    Income Taxes

The effective income tax rates for the three months ended March 31, 2025 and 2024 were 26.5% and 26.6%, respectively. The 2025 and 2024 effective tax rates differed from the U.S. federal rate of 21% primarily because of U.S. state taxes.