| Value | Category | Cases | |
|---|---|---|---|
| 0 | 156 |
91.2%
|
|
| 1 | 12 |
7%
|
|
| 2 | 1 |
0.6%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 1 |
0.6%
|
|
| Sysmiss | 990 |