| Value | Category | Cases | |
|---|---|---|---|
| 0 | 261 |
66.9%
|
|
| 1 | 10 |
2.6%
|
|
| 2 | 6 |
1.5%
|
|
| 4 | 4 |
1%
|
|
| 5 | 2 |
0.5%
|
|
| 6 | 9 |
2.3%
|
|
| 7 | 2 |
0.5%
|
|
| 8 | 5 |
1.3%
|
|
| 9 | 2 |
0.5%
|
|
| 10 | 4 |
1%
|
|
| 12 | 2 |
0.5%
|
|
| 16 | 1 |
0.3%
|
|
| 18 | 2 |
0.5%
|
|
| 50 | 34 |
8.7%
|
|
| 77 | Don't know | 46 |
11.8%
|
| Sysmiss | 2143 |