| Value | Category | Cases | |
|---|---|---|---|
| 0 | 266 |
17.6%
|
|
| 1 | 1203 |
79.5%
|
|
| 2 | 33 |
2.2%
|
|
| 3 | 8 |
0.5%
|
|
| 4 | 2 |
0.1%
|
|
| 5 | 2 |
0.1%
|
|
| Sysmiss | 7 |