| Frequency | Percent | Valid Percent | Cumulative Percent | ||
|---|---|---|---|---|---|
| Valid | 1 No Pressure | 5 | .7 | .7 | .7 |
| 2 | 16 | 2.1 | 2.2 | 2.8 | |
| 3 | 207 | 27.7 | 27.9 | 30.7 | |
| 4 | 364 | 48.8 | 49.1 | 79.8 | |
| 5 Extreme Pressure | 150 | 20.1 | 20.2 | 100.0 | |
| Total | 742 | 99.5 | 100.0 | ||
| Missing | 9 No response | 2 | .3 | ||
| System Missing | 2 | .3 | |||
| Total | 4 | .5 | |||
| Total | 746 | 100.0 | |||