| Value | Category | 
|---|---|
| 0 | None | 
| 1 | The absence of relations | 
| 2 | Limited financial resources | 
| 3 | Lack of opportunities | 
| 4 | Lack of information | 
| 5 | Difficulty of mandate terms | 
| 6 | Unavailability of work in his specialization | 
| 96 | Other difficulty | 
| 2147483625 | Don't know | 
| 2147483634 | Missing | 
| 2147483636 | Other | 
| 2147483639 | Refused | 
| Sysmiss |