| Value | Category | Cases | |
|---|---|---|---|
| 0 | 49 |
26.1%
|
|
| 1 | 28 |
14.9%
|
|
| 2 | 17 |
9%
|
|
| 3 | 15 |
8%
|
|
| 5 | 7 |
3.7%
|
|
| 6 | 4 |
2.1%
|
|
| 7 | 1 |
0.5%
|
|
| 8 | 1 |
0.5%
|
|
| 9 | 2 |
1.1%
|
|
| 10 | 8 |
4.3%
|
|
| 12 | 5 |
2.7%
|
|
| 15 | 4 |
2.1%
|
|
| 17 | 1 |
0.5%
|
|
| 18 | 1 |
0.5%
|
|
| 20 | 5 |
2.7%
|
|
| 24 | 2 |
1.1%
|
|
| 25 | 1 |
0.5%
|
|
| 30 | 4 |
2.1%
|
|
| 50 | 17 |
9%
|
|
| 77 | Don't know | 16 |
8.5%
|
| Sysmiss | 967 |