| Value | Category | Cases | |
|---|---|---|---|
| 0 | 201 |
79.8%
|
|
| 1 | 41 |
16.3%
|
|
| 2 | 7 |
2.8%
|
|
| 3 | 1 |
0.4%
|
|
| 4 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| Sysmiss | 9729 |