| Value | Category | Cases | |
|---|---|---|---|
| 0 | 550 |
77.8%
|
|
| 1 | 125 |
17.7%
|
|
| 2 | 29 |
4.1%
|
|
| 3 | 2 |
0.3%
|
|
| 4 | 1 |
0.1%
|
|
| Sysmiss | 1101 |