| N | a9 | a10 | a15 | a19 | a20 | increasing |
| 0 | 0.60 | 0.00 | 0.99 | 0.98 | 0.25 | |
| 1 | 0.66 | 0.80 | 0.99 | 0.99 | 0.43 | |
| 2 | 0.87 | 0.93 | 1.00 | 1.00 | 0.66 | |
| 3 | 0.90 | 0.97 | 1.00 | 1.00 | 0.93 | |
| 4 | 0.92 | 0.99 | 1.00 | 1.00 | 0.95 | |
| 5 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |
| 6 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |