| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.2%
|
|
| 1 | 52 |
8.7%
|
|
| 2 | 48 |
8%
|
|
| 3 | 7 |
1.2%
|
|
| 4 | 4 |
0.7%
|
|
| Missing value | 488 |
81.3%
|