[−20, −2]

[−10, −2]

−1

0

1

[−1, 1]

[0, 1]

[2, 10]

[2, 20]

Sample size

51

51

51

51

51

51

51

51

51

Average (%)

0.75

1.45

0.08

−0.49

0.02

−0.39*

−0.47

−0.24

−0.58

t

0.79

1.27

0.34

−1.47

0.17

−1.82

1.52

−0.55

−0.92