| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Wave 1-2010/11 | 22773 |
5.1%
|
| 2 | 2. Wave 2-2012/13 | 138881 |
31%
|
| 3 | 3. Wave 3-2015/16 | 137460 |
30.6%
|
| 4 | 4. Wave 4-2018/19 | 149370 |
33.3%
|