| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. < 1000 | 577 |
12.7%
|
| 2 | 2. 1000 - 1999 | 382 |
8.4%
|
| 3 | 3. 2000 - 4999 | 385 |
8.4%
|
| 4 | 4. 5000 - 9999 | 234 |
5.1%
|
| 5 | > 10000 | 404 |
8.9%
|
| 99 | 99. Don't know | 2578 |
56.5%
|