| Value | Category | Cases | |
|---|---|---|---|
| 1 | 13 |
6.7%
|
|
| 2 | 29 |
14.9%
|
|
| 3 | 83 |
42.8%
|
|
| 4 | 46 |
23.7%
|
|
| 5 | 18 |
9.3%
|
|
| 6 | 4 |
2.1%
|
|
| 7 | 1 |
0.5%
|
|
| Sysmiss | 2015 |