| Value | Category | Cases | |
|---|---|---|---|
| 1 | 31 |
11%
|
|
| 2 | 11 |
3.9%
|
|
| 3 | 1 |
0.4%
|
|
| 4 | 4 |
1.4%
|
|
| Missing value | 236 |
83.4%
|