| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 154 |
43.8%
|
| 2 | 1 | 20 |
5.7%
|
| 3 | 98 | 1 |
0.3%
|
| 4 | 99 | 1 |
0.3%
|
| Missing value | 176 |
50%
|