Visit

Mean

Standard deviation

Correlation

0

1

2

3

4

0

0.90

0.59

0.43

0.40

0.37

0.35

1

1.15

0.64

0.55

0.56

0.56

2

1.14

0.69

0.62

0.63

3

1.13

0.74

0.67

4

1.12

0.79