| Value | Category | Cases | |
|---|---|---|---|
| 0 | 491 |
35.5%
|
|
| 1 | 288 |
20.8%
|
|
| 2 | 210 |
15.2%
|
|
| 3 | 138 |
10%
|
|
| 4 | 70 |
5.1%
|
|
| 5 | 44 |
3.2%
|
|
| 6 | 12 |
0.9%
|
|
| 7 | 114 |
8.2%
|
|
| 77 | Don't know | 18 |
1.3%
|
| Sysmiss | 2 |