| Value | Category | Cases | |
|---|---|---|---|
| 1 | 151 |
24.4%
|
|
| 2 | 216 |
34.8%
|
|
| 3 | 115 |
18.5%
|
|
| 4 | 49 |
7.9%
|
|
| 5 | 28 |
4.5%
|
|
| 6 | 16 |
2.6%
|
|
| 7 | 3 |
0.5%
|
|
| 8 | 6 |
1%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 4 |
0.6%
|
|
| 11 | 1 |
0.2%
|
|
| 12 | 1 |
0.2%
|
|
| 15 | 1 |
0.2%
|
|
| 16 | 1 |
0.2%
|
|
| 20 | 1 |
0.2%
|
|
| 30 | 4 |
0.6%
|
|
| 36 | 1 |
0.2%
|
|
| 77 | don't know | 21 |
3.4%
|
| Sysmiss | 1023 |