| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 9 |
12%
|
|
| 2001 | 8 |
10.7%
|
|
| 2002 | 21 |
28%
|
|
| 2003 | 25 |
33.3%
|
|
| 2004 | 12 |
16%
|