| value | category | Casos | |
|---|---|---|---|
| 1999 | 2 |
0%
|
|
| 2000 | 22 |
0.3%
|
|
| 2001 | 35 |
0.5%
|
|
| 2002 | 73 |
1.1%
|
|
| 2003 | 76 |
1.2%
|
|
| 2004 | 72 |
1.1%
|
|
| 2005 | 76 |
1.2%
|
|
| Sysmiss | 6156 |