| Value | Category | Cases | |
|---|---|---|---|
| 0 | 780 |
1.5%
|
|
| 1 | 21 |
0%
|
|
| 9 | 15304 |
29.5%
|
|
| 21 | 31129 |
60%
|
|
| 25 | 1172 |
2.3%
|
|
| 31 | 3444 |
6.6%
|
|
| Sysmiss | 84929 |