|
| Low z | High z | Neither | TOTAL |
| Low SNS | 21 | 0 | 0 | 21 |
| High SNS | 0 | 0 | 0 | 0 |
| Neither | 23 | 1 | 4685 | 4759 |
| TOTAL | 44 | 1 | 4735 | 4780 |