| Value | Category | Cases | |
|---|---|---|---|
| 1 | JANUARY | 1 |
0.1%
|
| 4 | APRIL | 1 |
0.1%
|
| 8 | AUGUST | 1 |
0.1%
|
| 99 | DON'T KNOW | 1 |
0.1%
|
| Sysmiss | 1460 |
99.7%
|