| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.7%
|
|
| 1 | 31 |
21.1%
|
|
| 2 | 21 |
14.3%
|
|
| 3 | 17 |
11.6%
|
|
| 4 | 9 |
6.1%
|
|
| 5 | 4 |
2.7%
|
|
| 6 | 14 |
9.5%
|
|
| 7 | 4 |
2.7%
|
|
| 8 | 6 |
4.1%
|
|
| 9 | 1 |
0.7%
|
|
| 10 | 5 |
3.4%
|
|
| 11 | 6 |
4.1%
|
|
| 12 | 11 |
7.5%
|
|
| 13 | 2 |
1.4%
|
|
| 16 | 2 |
1.4%
|
|
| 18 | 1 |
0.7%
|
|
| 21 | 1 |
0.7%
|
|
| 97 | inconsistent | 0 |
0%
|
| 98 | don't know | 11 |
7.5%
|
| Sysmiss | 38571 |