| Value | Category |
|---|---|
| -99 | Don't know |
| 0 | (totals only) Zero - no data in this column |
| 1000 | |
| 2000 | |
| 2500 | |
| 3500 | |
| 4000 | |
| 6000 | |
| 6500 | |
| 7000 | |
| 7500 | |
| 8000 | |
| 9000 | |
| 10000 | |
| 11000 | |
| 12000 | |
| 13000 | |
| 14000 | |
| 15000 | |
| 17000 | |
| 18000 | |
| 19000 | |
| 20000 | |
| 22000 | |
| 24000 | |
| 25000 | |
| 28000 | |
| 29000 | |
| 30000 | |
| 35000 | |
| 36000 | |
| 55000 | |
| 56000 | |
| 75000 | |
| 75600 | |
| Sysmiss |