| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refusal to answer |
| -7 | Does not apply |
| 0 | |
| 200 | |
| 300 | |
| 400 | |
| 500 | |
| 600 | |
| 700 | |
| 800 | |
| 900 | |
| 1000 | |
| 1200 | |
| 1500 | |
| 1800 | |
| 2000 | |
| 2400 | |
| 2500 | |
| 3000 | |
| 3500 | |
| 4000 | |
| 4200 | |
| 4500 | |
| 5000 | |
| 5600 | |
| 6000 | |
| 7000 | |
| 7500 | |
| 10000 | |
| 12000 | |
| 13000 | |
| 15000 | |
| 20000 | |
| 22000 | |
| 24000 | |
| 25000 | |
| 25200 | |
| 26000 | |
| 30000 | |
| 30500 | |
| 40000 | |
| 40500 | |
| 45000 | |
| 50000 | |
| 60000 | |
| 70000 | |
| 75000 | |
| 80000 | |
| 100000 | |
| 180000 | |
| 200000 | |
| 500000 | |
| 1000000 | |
| 1200000 | |
| 5000000 |