| Value | Category | Cases | |
|---|---|---|---|
| 0 | 115 |
61.2%
|
|
| 1 | 8 |
4.3%
|
|
| 2 | 4 |
2.1%
|
|
| 3 | 3 |
1.6%
|
|
| 4 | 1 |
0.5%
|
|
| 5 | 1 |
0.5%
|
|
| 6 | 2 |
1.1%
|
|
| 8 | 1 |
0.5%
|
|
| 10 | 2 |
1.1%
|
|
| 12 | 1 |
0.5%
|
|
| 14 | 1 |
0.5%
|
|
| 15 | 2 |
1.1%
|
|
| 20 | 1 |
0.5%
|
|
| 50 | 19 |
10.1%
|
|
| 77 | Don't know | 27 |
14.4%
|
| Sysmiss | 967 |