For the Three Months Ended

For the Nine Months Ended

September 30,

2023

2022

2023

2022

Numerator (basic and diluted):

Net income

$

649,827

$

585,438

$

1,794,077

$

1,644,078

Denominator:

Weighted-average common shares outstanding – basic

60,082

63,288

60,905

64,979

Effect of stock options ⁽¹⁾

508

572

540

587

Weighted-average common shares outstanding – assuming dilution

60,590

63,860

61,445

65,566

Earnings per share:

Earnings per share-basic

$

10.82

$

9.25

$

29.46

$

25.30

Earnings per share-assuming dilution

$

10.72

$

9.17

$

29.20

$

25.08

Antidilutive potential common shares not included in the calculation of diluted earnings per share:

Stock options ⁽¹⁾

83

139

98

145

Weighted-average exercise price per share of antidilutive stock options ⁽¹⁾

$

853.21

$

660.74

$

824.23

$

658.74