| Value | Category | Cases | |
|---|---|---|---|
| 0 | 61 |
23.2%
|
|
| 1 | 12 |
4.6%
|
|
| 2 | 29 |
11%
|
|
| 3 | 25 |
9.5%
|
|
| 4 | 34 |
12.9%
|
|
| 5 | 29 |
11%
|
|
| 6 | 20 |
7.6%
|
|
| 7 | 10 |
3.8%
|
|
| 8 | 7 |
2.7%
|
|
| 9 | 2 |
0.8%
|
|
| 10 | 12 |
4.6%
|
|
| 12 | 2 |
0.8%
|
|
| 15 | 2 |
0.8%
|
|
| 18 | 1 |
0.4%
|
|
| 20 | 2 |
0.8%
|
|
| 21 | 1 |
0.4%
|
|
| 77 | Don't know | 14 |
5.3%
|
| Sysmiss | 3924 |