| Value | Category | Cases | |
|---|---|---|---|
| 2007 | 1 |
0.9%
|
|
| 2011 | 2 |
1.9%
|
|
| 2012 | 1 |
0.9%
|
|
| 2013 | 12 |
11.1%
|
|
| 2014 | 92 |
85.2%
|
|
| Sysmiss | 1 |