| Value | Category | Cases | |
|---|---|---|---|
| 1 | JANUARY | 1 |
0.1%
|
| 4 | APRIL | 1 |
0.1%
|
| 6 | JUNE | 1 |
0.1%
|
| 8 | AUGUST | 2 |
0.2%
|
| 9 | SEPTEMBER | 2 |
0.2%
|
| 10 | OCTOBER | 2 |
0.2%
|
| 97 | INCONSISTENT | 3 |
0.3%
|
| 99 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 1083 |
98.8%
|