| Value | Category | Cases | |
|---|---|---|---|
| 1 | 168 |
9.1%
|
|
| 2 | 382 |
20.8%
|
|
| 3 | 361 |
19.6%
|
|
| 4 | 138 |
7.5%
|
|
| 5 | 280 |
15.2%
|
|
| 6 | 349 |
19%
|
|
| 7 | 160 |
8.7%
|
|
| 77 | Don't know | 2 |
0.1%
|
| Sysmiss | 693 |