| Value | Category | Cases | |
|---|---|---|---|
| 2014 | 169 |
18.5%
|
|
| 2015 | 152 |
16.6%
|
|
| 2016 | 165 |
18.1%
|
|
| 2017 | 151 |
16.5%
|
|
| 2018 | 142 |
15.6%
|
|
| 2019 | 134 |
14.7%
|
|
| Sysmiss | 0 |