| Value | Category | Cases | |
|---|---|---|---|
| 0 | 29 |
17.7%
|
|
| 1 | 115 |
70.1%
|
|
| 2 | 18 |
11%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 1 |
0.6%
|
|
| Sysmiss | 730 |