| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3691 |
84.6%
|
|
| 1 | 171 |
3.9%
|
|
| 2 | 191 |
4.4%
|
|
| 3 | 308 |
7.1%
|
|
| 999 | 999. missing | 0 |
0%
|
| Sysmiss | 177 |