| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 1 |
0.2%
|
| 2 | Poor | 1 |
0.2%
|
| 3 | Fair | 25 |
5.8%
|
| 4 | Good | 19 |
4.4%
|
| 5 | Very good | 384 |
89.3%
|
| 6 | Excellent | 0 |
0%
|
| 7 | Data not entered | 0 |
0%
|
| Sysmiss | 639 |