| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.5%
|
| -7 | DOES NOT APPLY (SPONTANEOUS) | 7 |
3.4%
|
| 1 | Within 6 months of identifying under-performance | 87 |
42.6%
|
| 2 | After 6 months of identifying under-performance | 23 |
11.3%
|
| 3 | Rarely or never | 86 |
42.2%
|
| Sysmiss | 156 |