| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 2012 or earlier | 877 |
19%
|
| 2013 | 657 |
14.2%
|
|
| 2014 | 803 |
17.4%
|
|
| 2015 | 842 |
18.2%
|
|
| 2016 | 2016 or later | 1442 |
31.2%
|
| Sysmiss | 458 |