| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 2013 or earlier | 65 |
2.8%
|
| 2014 | 288 |
12.3%
|
|
| 2015 | 371 |
15.9%
|
|
| 2016 | 287 |
12.3%
|
|
| 2017 | 511 |
21.9%
|
|
| 2018 | 2018 or later | 816 |
34.9%
|
| Sysmiss | 2922 |