| Value | Category | Cases | |
|---|---|---|---|
| -999 | 253 |
17.3%
|
|
| -888 | 36 |
2.5%
|
|
| 0 | 64 |
4.4%
|
|
| 1 | 12 |
0.8%
|
|
| 2 | 27 |
1.8%
|
|
| 3 | 73 |
5%
|
|
| 4 | 121 |
8.3%
|
|
| 5 | 157 |
10.8%
|
|
| 6 | 202 |
13.8%
|
|
| 7 | 515 |
35.3%
|
|
| Sysmiss | 3090 |