Figure 3. Average within-firm 90–10 wage gap, skewness, and coefficient of variation, by median-wage percentile, 1999
Median-wage percentile Average within-firm 90–10 wage gap Average within-firm skewness Average within-firm coefficient of variation

5

2.157 2.001 0.345

10

1.579 2.299 .227

15

1.635 2.337 .246

20

1.739 2.078 .263

25

1.707 2.117 .269

30

1.984 1.954 .299

35

1.869 1.866 .297

40

1.901 1.894 .300

45

1.867 1.676 .284

50

2.158 1.608 .298

55

1.906 1.464 .283

60

1.961 1.222 .289

65

1.924 1.032 .272

70

2.063 .879 .287

75

2.112 .568 .284

80

2.096 .307 .286

85

2.154 .014 .281

90

2.264 -.145 .286

95

2.509 -.482 .301

>95

2.966 -.683 .338
Source: U.S. Bureau of Labor Statistics.