| Value | Category | Cases | |
|---|---|---|---|
| 0 | 406 |
50.7%
|
|
| 1 | 141 |
17.6%
|
|
| 2 | 81 |
10.1%
|
|
| 3 | 30 |
3.7%
|
|
| 4 | 23 |
2.9%
|
|
| 5 | 18 |
2.2%
|
|
| 6 | 12 |
1.5%
|
|
| 7 | 4 |
0.5%
|
|
| 8 | 8 |
1%
|
|
| 9 | 2 |
0.2%
|
|
| 10 | 12 |
1.5%
|
|
| 12 | 4 |
0.5%
|
|
| 14 | 2 |
0.2%
|
|
| 15 | 4 |
0.5%
|
|
| 16 | 1 |
0.1%
|
|
| 17 | 1 |
0.1%
|
|
| 20 | 3 |
0.4%
|
|
| 25 | 3 |
0.4%
|
|
| 30 | 12 |
1.5%
|
|
| 77 | Don't know | 34 |
4.2%
|
| Sysmiss | 4387 |