| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not necessary at all | 5 |
2.2%
|
| 2 | 7 |
3%
|
|
| 3 | 5 |
2.2%
|
|
| 4 | 7 |
3%
|
|
| 5 | 9 |
3.9%
|
|
| 6 | 8 |
3.4%
|
|
| 7 | 27 |
11.6%
|
|
| 8 | 46 |
19.8%
|
|
| 9 | 34 |
14.7%
|
|
| 10 | Extremely necessary | 84 |
36.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 22 |