| Value | Category | Cases | |
|---|---|---|---|
| 0 | 15 |
23.1%
|
|
| 1 | 6 |
9.2%
|
|
| 2 | 4 |
6.2%
|
|
| 3 | 6 |
9.2%
|
|
| 4 | 1 |
1.5%
|
|
| 5 | 4 |
6.2%
|
|
| 7 | 1 |
1.5%
|
|
| 8 | 1 |
1.5%
|
|
| 10 | 5 |
7.7%
|
|
| 15 | 3 |
4.6%
|
|
| 20 | 8 |
12.3%
|
|
| 60 | 1 |
1.5%
|
|
| 70 | 1 |
1.5%
|
|
| 77 | Don't know | 5 |
7.7%
|
| 777 | Don't know | 4 |
6.2%
|
| Sysmiss | 1983 |