| Value | Category | Cases | |
|---|---|---|---|
| 0 | 134 |
95.7%
|
|
| 10 | 2 |
1.4%
|
|
| 15 | 1 |
0.7%
|
|
| 19 | 1 |
0.7%
|
|
| 20 | 2 |
1.4%
|
|
| Sysmiss | 1811 |