| Value | Category | Cases | |
|---|---|---|---|
| 0 | 257 |
93.8%
|
|
| 1 | 10 |
3.6%
|
|
| 2 | 1 |
0.4%
|
|
| 3 | 1 |
0.4%
|
|
| 4 | 4 |
1.5%
|
|
| 17 | 1 |
0.4%
|
|
| 99999 | 24 | ||
| Sysmiss | 1298 |