[−60, −2]

[−30, −2]

[2, 30]

[2, 60]

[−60, 60]

[−30, 30]

[−20, 20]

[−10, 10]

Sample size

51

51

51

51

51

51

51

51

Average (%)

−12.95*

1.36

−1.54

−2.25*

−6.76*

0.47

0.74

0.82

t

−1.93

0.97

−1.40

−1.70

−1.95

0.23

0.46

0.77