| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Wave 1-2010/11 | 5018 |
32.3%
|
| 2 | 2. Wave 2-2012/13 | 5150 |
33.1%
|
| 3 | 3. Wave 3-2015/16 | 5380 |
34.6%
|