| Value | Category | Cases | |
|---|---|---|---|
| 0 | 159 |
51.3%
|
|
| 1 | 127 |
41%
|
|
| 2 | 14 |
4.5%
|
|
| 3 | 4 |
1.3%
|
|
| 4 | 4 |
1.3%
|
|
| 5 | 1 |
0.3%
|
|
| 17 | 1 |
0.3%
|
|
| Sysmiss | 6918 |