| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.3%
|
|
| 1 | 126 |
19.2%
|
|
| 2 | 128 |
19.5%
|
|
| 3 | 103 |
15.7%
|
|
| 4 | 102 |
15.5%
|
|
| 5 | 97 |
14.8%
|
|
| 6 | 70 |
10.7%
|
|
| 7 | 10 |
1.5%
|
|
| 8 | 18 |
2.7%
|
|
| Sysmiss | 1999 |