| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 2 |
2.9%
|
|
| 2003 | 7 |
10%
|
|
| 2004 | 12 |
17.1%
|
|
| 2005 | 11 |
15.7%
|
|
| 2006 | 22 |
31.4%
|
|
| 2007 | 13 |
18.6%
|
|
| 9898 | 1 |
1.4%
|
|
| 9998 | 2 |
2.9%
|