| Value | Category | Cases | |
|---|---|---|---|
| 0 | 343 |
26.4%
|
|
| 1 | 176 |
13.5%
|
|
| 2 | 96 |
7.4%
|
|
| 3 | 14 |
1.1%
|
|
| 4 | 2 |
0.2%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| Missing value | 666 |
51.3%
|