| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
1.3%
|
| -7 | Does not apply | 38 |
25.2%
|
| 1 | Within 6 months of identifying under-performance | 22 |
14.6%
|
| 2 | After 6 months of identifying under-performance | 11 |
7.3%
|
| 3 | Rarely or never | 78 |
51.7%
|