| Value | Category | Cases | |
|---|---|---|---|
| 0 | 463 |
84.3%
|
|
| 1 | 66 |
12%
|
|
| 2 | 14 |
2.6%
|
|
| 3 | 2 |
0.4%
|
|
| 4 | 1 |
0.2%
|
|
| 5 | 1 |
0.2%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| Sysmiss | 12 |