| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 19 |
0%
|
|
| 2013 | 6766 |
17%
|
|
| 2014 | 8290 |
20.8%
|
|
| 2015 | 7937 |
19.9%
|
|
| 2016 | 7893 |
19.8%
|
|
| 2017 | 8172 |
20.5%
|
|
| 2018 | 772 |
1.9%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9999 | No response | 0 |
0%
|
| Sysmiss | 2559 |