| Value | Category | Cases | |
|---|---|---|---|
| 0 | NONE | 1805 |
91.8%
|
| 1 | ONE | 12 |
0.6%
|
| 2 | TWO | 18 |
0.9%
|
| 7 | SEVEN | 2 |
0.1%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 129 |
6.6%
|