| Value | Category | Cases | |
|---|---|---|---|
| -998 | Don't Know | 1 |
0.8%
|
| 0 | 108 |
90.8%
|
|
| 1 | 4 |
3.4%
|
|
| 4 | 1 |
0.8%
|
|
| 8 | 1 |
0.8%
|
|
| 10 | 2 |
1.7%
|
|
| 15 | 2 |
1.7%
|