| variable | N | mean | sd | min | p50 | max |
| score | 2150 | 0.04 | 0.03 | −0.10 | 0.04 | 0.22 |
| succession | 2150 | 0.20 | 0.40 | 0.00 | 0.00 | 1.00 |
| council | 2150 | 3.94 | 0.35 | 2.00 | 4.00 | 5.00 |
| supervision | 2150 | 3.24 | 0.75 | 1.00 | 3.00 | 10.00 |
| meeting | 2150 | 9.67 | 3.55 | 1.00 | 9.00 | 44.00 |
| ceo | 2150 | 0.71 | 0.28 | 0.00 | 1.00 | 1.00 |
| market | 2150 | 8.59 | 1.51 | 2.01 | 8.89 | 11.80 |
| edu | 2150 | 0.93 | 0.26 | 0.00 | 1.00 | 1.00 |
| roe | 2150 | 0.07 | 0.09 | −1.81 | 0.07 | 0.45 |
| lev | 2150 | 0.36 | 0.19 | 0.01 | 0.36 | 0.89 |
| size | 2150 | 21.76 | 0.95 | 19.65 | 21.62 | 25.71 |