| Value | Category | Cases | |
|---|---|---|---|
| 0 | 254 |
85.8%
|
|
| 1 | 24 |
8.1%
|
|
| 2 | 11 |
3.7%
|
|
| 3 | 2 |
0.7%
|
|
| 4 | 1 |
0.3%
|
|
| 5 | 1 |
0.3%
|
|
| 6 | 1 |
0.3%
|
|
| 12 | 1 |
0.3%
|
|
| 15 | 1 |
0.3%
|
|
| Sysmiss | 1183 |