| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2134 |
91.5%
|
|
| 1 | 162 |
6.9%
|
|
| 2 | 4 |
0.2%
|
|
| 3 | 31 |
1.3%
|
|
| 888 | 2 |
0.1%
|
|
| Sysmiss | 2496 |