| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1270 |
84.5%
|
|
| 1 | 175 |
11.6%
|
|
| 2 | 36 |
2.4%
|
|
| 3 | 21 |
1.4%
|
|
| 888 | 1 |
0.1%
|
|
| Sysmiss | 92 |