| Value | Category | 
|---|---|
| 0 | |
| 1 | private lessons | 
| 2 | illness | 
| 3 | have to work | 
| 4 | transport difficulties | 
| 5 | too expensive | 
| 6 | school is closed for other reason than holiday | 
| 7 | bad quality of school | 
| 8 | donot want to study | 
| 9 | temp stop, but planning to resume | 
| 10 | have help at home | 
| 11 | other |