| Boxplot statistics |
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| diff5 | -0.0312 | -0.02571 | -0.0213 | -0.01519 | 0.00038 |
| diff10 | -0.03225 | -0.0206 | -0.01555 | -0.01151 | 0.00129 |
| diff15 | -0.02489 | -0.01916 | -0.01604 | -0.00826 | 0.00627 |
| diff20 | -0.02351 | -0.01596 | -0.00798 | -0.0045 | 0.01016 |
| diff25 | -0.01893 | -0.01508 | -0.01196 | -0.00724 | 0.00436 |
| diff30 | -0.01789 | -0.00542 | 0.00058 | 0.00781 | 0.01617 |
| diff40 | -0.02932 | -0.02098 | -0.01315 | -0.00647 | 0.01489 |
| diff50 | -0.03759 | 0.00107 | 0.01387 | 0.02705 | 0.04548 |
| Boxplot Notches |
| Variable | lower bound | median | upper bound |
| diff5 | -0.022484239966079 | -0.0213 | -0.020115760033921 |
| diff10 | -0.0165732643813364 | -0.01555 | -0.0145267356186636 |
| diff15 | -0.0172670166948918 | -0.01604 | -0.0148129833051082 |
| diff20 | -0.00927005608472108 | -0.00798 | -0.00668994391527892 |
| diff25 | -0.0128425514576102 | -0.01196 | -0.0110774485423898 |
| diff30 | -0.00090930558471727 | 0.00058 | 0.00206930558471727 |
| diff40 | -0.0147833956186128 | -0.01315 | -0.0115166043813872 |
| diff50 | 0.0109454225932763 | 0.01387 | 0.0167945774067237 |
