| Value | Category | Cases | |
|---|---|---|---|
| 4 | 1 |
0.3%
|
|
| 5 | 2 |
0.6%
|
|
| 6 | 2 |
0.6%
|
|
| 7 | 2 |
0.6%
|
|
| 8 | Don't Know | 5 |
1.4%
|
| 9 | 1 |
0.3%
|
|
| 99 | Not applicable | 340 |
96.3%
|