| Value | Category | 
|---|---|
| -9 | Don't know | 
| -8 | Refusal | 
| -7 | Does not apply | 
| 0 | |
| 80000 | |
| 100000 | |
| 500000 | |
| 670000 | |
| 1000000 | |
| 1200000 | |
| 1600000 | |
| 1800000 | |
| 2000000 | |
| 2500000 | |
| 2520000 | |
| 2900000 | |
| 3000000 | |
| 4000000 | |
| 7000000 | |
| 8000000 | |
| 10800000 | |
| 13000000 | |
| 18000000 | |
| 20000000 | |
| 30958000 | |
| 33000000 | |
| 72000000 | |
| 352000000 | |
| Sysmiss |