| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 7 |
2.6%
|
| 2 | No | 260 |
97%
|
| 99 | N/R | 1 |
0.4%
|
| 999 | N/A | 0 |
0%
|
| Sysmiss | 931 |