| Value | Category | 
|---|---|
| 1 | Written agreement with fixed duration | 
| 2 | Written agreement with undetermined duration | 
| 3 | Verbal agreement with fixed duration | 
| 4 | Verbal agreement with undetermined duration | 
| 5 | Owner of the enterprise So don't have agreement | 
| 6 | Noting at all | 
| 9 | Not Stated |