| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4063 |
93.2%
|
|
| 1 | 68 |
1.6%
|
|
| 2 | 96 |
2.2%
|
|
| 3 | 134 |
3.1%
|
|
| 999 | 999. missing | 0 |
0%
|
| Sysmiss | 177 |