| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 2013 or earlier | 191 |
9.9%
|
| 2014 | 264 |
13.8%
|
|
| 2015 | 257 |
13.4%
|
|
| 2016 | 338 |
17.6%
|
|
| 2017 | 615 |
32%
|
|
| 2018 | 2018 or later | 255 |
13.3%
|
| Sysmiss | 3340 |