| value | category | Casos | |
|---|---|---|---|
| 1993 | 1 |
0%
|
|
| 1996 | 1 |
0%
|
|
| 1997 | 4 |
0.1%
|
|
| 1998 | 2 |
0%
|
|
| 1999 | 3 |
0.1%
|
|
| 2000 | 1 |
0%
|
|
| 2001 | 1 |
0%
|
|
| 2002 | 3 |
0.1%
|
|
| 2004 | 2 |
0%
|
|
| Sysmiss | 5487 |