| Value | Category | Cases | |
|---|---|---|---|
| 0 | 45 |
19.5%
|
|
| 1 | 18 |
7.8%
|
|
| 2 | 13 |
5.6%
|
|
| 3 | 10 |
4.3%
|
|
| 4 | 1 |
0.4%
|
|
| Missing value | 144 |
62.3%
|