Low

Medium

High

Very high

Mean

Medium

0.78^***

High

0.74^***

0.7871^***

Very high

0.51^***

0.59^***

0.78^***

Mean

0.75^***

0.83^***

0.94^***

0.92^***

Variance

0.25

0.38^*

0.60^***

0.93^***

0.76^***