| Value | Category | Cases | |
|---|---|---|---|
| 0 | 520 |
96.1%
|
|
| 2 | 3 |
0.6%
|
|
| 3 | 7 |
1.3%
|
|
| 4 | 3 |
0.6%
|
|
| 5 | 2 |
0.4%
|
|
| 6 | 1 |
0.2%
|
|
| 7 | 1 |
0.2%
|
|
| 12 | 1 |
0.2%
|
|
| 17 | 2 |
0.4%
|
|
| 18 | 1 |
0.2%
|
|
| Sysmiss | 20 |