| Value | Category | Cases | |
|---|---|---|---|
| 0 | 215 |
84.6%
|
|
| 1 | 14 |
5.5%
|
|
| 2 | 21 |
8.3%
|
|
| 3 | 1 |
0.4%
|
|
| 5 | 1 |
0.4%
|
|
| 7 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| Sysmiss | 1697 |