| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very high quality | 335 |
11.8%
|
| 2 | Good quality | 766 |
27%
|
| 3 | Acceptable quality | 686 |
24.2%
|
| 4 | Poor quality | 155 |
5.5%
|
| 5 | Very poor quality | 371 |
13.1%
|
| 8 | Uncertain or Do not know | 522 |
18.4%
|
| 9 | Not available or Not applicable | 3 |
0.1%
|
| Sysmiss | 326 |