age

Mean(M)

SD

M-1SD

M-0.5SD

M+0.5SD

M+1SD

20-29

Males

6.69

0.70

5.99

6.34

7.04

7.39

Females

6.57

0.66

5.91

6.24

6.90

7.23

30-39

Males

7.12

0.68

6.44

6.78

7.46

7.80

Females

6.79

0.63

6.16

6.48

7.11

7.42

40-49

Males

7.59

0.70

6.89

7.24

7.94

8.29

Females

7.29

0.66

6.63

6.96

7.62

7.95

50-59

Males

8.07

0.76

7.31

7.69

8.45

8.83

Females

7.82

0.70

7.12

7.47

8.17

8.52

60-69

Males

8.73

0.81

7.92

8.33

9.14

9.54

Females

8.26

0.72

7.54

7.90

8.62

8.98

70+

Males

9.35

1.00

8.35

8.85

9.85

10.35

Females

8.71

0.75

7.96

8.34

9.09

9.46