| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0%
|
|
| 2001 | 4 |
0%
|
|
| 2003 | 6 |
0%
|
|
| 2005 | 141 |
0.7%
|
|
| 2006 | 4160 |
20.5%
|
|
| 2007 | 9991 |
49.3%
|
|
| 2008 | 5968 |
29.4%
|
|
| Sysmiss | 21535 |