| Value | Category | Cases | |
|---|---|---|---|
| -8 | dk | 36 |
6.2%
|
| 2009 | 41 |
7.1%
|
|
| 2010 | 62 |
10.7%
|
|
| 2011 | 73 |
12.6%
|
|
| 2012 | 115 |
19.8%
|
|
| 2013 | 150 |
25.9%
|
|
| 2014 | 103 |
17.8%
|