| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 741 |
8.9%
|
|
| 2014 | 1725 |
20.6%
|
|
| 2015 | 1771 |
21.2%
|
|
| 2016 | 1545 |
18.5%
|
|
| 2017 | 1408 |
16.8%
|
|
| 2018 | 1169 |
14%
|