| Value | Category | Cases | |
|---|---|---|---|
| -8 | don't know | 154 |
14.8%
|
| 1 | approximately accurate | 663 |
63.7%
|
| 2 | estimate is too high | 127 |
12.2%
|
| 3 | estimate is too low | 97 |
9.3%
|
| Sysmiss | 3603 |