| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Wave 1-2010/11 | 22731 |
4.1%
|
| 2 | 2. Wave 2-2012/13 | 143670 |
25.7%
|
| 3 | 3. Wave 3-2015/16 | 187862 |
33.6%
|
| 4 | 4. Wave 4-2018/19 | 204139 |
36.6%
|