| Value | Category | Cases | |
|---|---|---|---|
| 0 | 476 |
47.2%
|
|
| 1 | 445 |
44.1%
|
|
| 2 | 67 |
6.6%
|
|
| 3 | 16 |
1.6%
|
|
| 4 | 2 |
0.2%
|
|
| 5 | 2 |
0.2%
|
|
| Sysmiss | 1 |