| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.9%
|
| -7 | DOES NOT APPLY (SPONTANEOUS) | 16 |
7.4%
|
| 1 | Within 6 months of identifying under-performance | 64 |
29.5%
|
| 2 | After 6 months of identifying under-performance | 19 |
8.8%
|
| 3 | Rarely or never | 116 |
53.5%
|
| Sysmiss | 142 |