| Value | Category | Cases | |
|---|---|---|---|
| 1 | 4 |
2.1%
|
|
| 2 | 1 |
0.5%
|
|
| 3 | 1 |
0.5%
|
|
| 5 | 1 |
0.5%
|
|
| 6 | 1 |
0.5%
|
|
| Missing value | 181 |
95.8%
|