| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 11 |
16.7%
|
|
| 2001 | 7 |
10.6%
|
|
| 2002 | 14 |
21.2%
|
|
| 2003 | 24 |
36.4%
|
|
| 2004 | 10 |
15.2%
|