| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 397 |
12%
|
|
| 2009 | 490 |
14.8%
|
|
| 2010 | 679 |
20.5%
|
|
| 2011 | 818 |
24.7%
|
|
| 2012 | 894 |
27%
|
|
| 2013 | 13 |
0.4%
|
|
| 8888 | 19 |
0.6%
|