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Income Taxes
3 Months Ended
Mar. 31, 2024
Income Taxes  
Income Taxes

9.    Income Taxes

The effective income tax rates for the three months ended March 31, 2024 and 2023 were 26.6% and 25.6%, respectively. The 2024 and 2023 effective tax rates differed from the federal rate of 21% primarily because of state taxes.