| Value | Category | Cases | |
|---|---|---|---|
| 0 | 279 |
15%
|
|
| 1 | 1476 |
79.4%
|
|
| 2 | 59 |
3.2%
|
|
| 3 | 32 |
1.7%
|
|
| 4 | 14 |
0.8%
|
|
| Sysmiss | 30001 |