| value | category | Casos | |
|---|---|---|---|
| 1999 | 64 |
1%
|
|
| 2000 | 250 |
3.8%
|
|
| 2001 | 277 |
4.3%
|
|
| 2002 | 198 |
3%
|
|
| 2003 | 155 |
2.4%
|
|
| 2004 | 158 |
2.4%
|
|
| 2005 | 91 |
1.4%
|
|
| Sysmiss | 5319 |