| value | category | Casos | |
|---|---|---|---|
| 1985 | 1 |
0%
|
|
| 1996 | 1 |
0%
|
|
| 1997 | 1 |
0%
|
|
| 1999 | 1 |
0%
|
|
| 9999 | 3 | ||
| Sysmiss | 5498 |