| Value | Category | Cases | |
|---|---|---|---|
| 0 | 175 |
17.8%
|
|
| 1 | 304 |
30.9%
|
|
| 2 | 253 |
25.7%
|
|
| 3 | 162 |
16.4%
|
|
| 4 | 58 |
5.9%
|
|
| 5 | 23 |
2.3%
|
|
| 6 | 9 |
0.9%
|
|
| 8 | 1 |
0.1%
|
|
| Sysmiss | 497 |