| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1663 |
12.1%
|
|
| 2 | 4511 |
32.7%
|
|
| 3 | 5999 |
43.5%
|
|
| 4 | 1617 |
11.7%
|
|
| Sysmiss | 497 |