| Value | Category | Cases | |
|---|---|---|---|
| 0 | NONE | 656 |
93.3%
|
| 1 | ONE | 6 |
0.9%
|
| 2 | TWO | 5 |
0.7%
|
| 3 | THREE | 1 |
0.1%
|
| 4 | FOUR | 2 |
0.3%
|
| 5 | FIVE | 2 |
0.3%
|
| Sysmiss | 31 |
4.4%
|