| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.1%
|
|
| 1 | 550 |
43.2%
|
|
| 2 | 352 |
27.7%
|
|
| 3 | 180 |
14.1%
|
|
| 4 | 30 |
2.4%
|
|
| 5 | 13 |
1%
|
|
| 6 | 5 |
0.4%
|
|
| 7 | 91 |
7.1%
|
|
| 77 | Don't know | 51 |
4%
|
| Sysmiss | 15 |