| value | category | Casos | |
|---|---|---|---|
| 1999 | 26 |
0.4%
|
|
| 2000 | 218 |
3.3%
|
|
| 2001 | 233 |
3.6%
|
|
| 2002 | 169 |
2.6%
|
|
| 2003 | 122 |
1.9%
|
|
| 2004 | 140 |
2.1%
|
|
| 2005 | 79 |
1.2%
|
|
| 9999 | 206 | ||
| Sysmiss | 5319 |