| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Wave 1-2010/11 | 9785 |
7%
|
| 2 | 2. Wave 2-2012/13 | 43101 |
31%
|
| 3 | 3. Wave 3-2015/16 | 41238 |
29.7%
|
| 4 | 4. Wave 4-2018/19 | 44811 |
32.3%
|