| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Wave 1-2010/11 | 23261 |
22.5%
|
| 2 | 2. Wave 2-2012/13 | 27272 |
26.4%
|
| 3 | 3. Wave 3-2015/16 | 26176 |
25.3%
|
| 4 | 4. Wave 4-2018/19 | 26557 |
25.7%
|