| Frequency | Percent | Valid Percent | Cumulative Percent | ||
|---|---|---|---|---|---|
| Valid | 1 No Pressure | 6 | .8 | .8 | .8 |
| 2 | 26 | 3.5 | 3.5 | 4.3 | |
| 3 | 142 | 19.0 | 19.2 | 23.6 | |
| 4 | 362 | 48.5 | 49.1 | 72.6 | |
| 5 Extreme Pressure | 202 | 27.1 | 27.4 | 100.0 | |
| Total | 738 | 98.9 | 100.0 | ||
| Missing | 6 | 2 | .3 | ||
| 9 No response | 4 | .5 | |||
| System Missing | 2 | .3 | |||
| Total | 8 | 1.1 | |||
| Total | 746 | 100.0 | |||