| Value | Category | Cases | |
|---|---|---|---|
| 1 | quantity of service | 10 |
0.1%
|
| 2 | quality of service | 52 |
0.5%
|
| 3 | quantity and quality | 37 |
0.4%
|
| 4 | other/ specify | 7 |
0.1%
|
| 9 | I don’t know | 1 |
0%
|
| Sysmiss | 9568 |