| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.5%
|
|
| 1 | 164 |
74.5%
|
|
| 2 | 28 |
12.7%
|
|
| 3 | 17 |
7.7%
|
|
| 4 | 8 |
3.6%
|
|
| 10 | 1 |
0.5%
|
|
| 13 | 1 |
0.5%
|
|
| Sysmiss | 1731 |