|
| Frequency | Percent | Valid Percent | Cumulative Percent | |
| Valid | PN | 24 | 24.5 | 24.5 | 24.5 |
| P− | 32 | 32.7 | 32.7 | 57.1 | |
| P+ | 42 | 42.9 | 42.9 | 100.0 | |
| Total | 98 | 100.0 | 100.0 |
| |