| Value | Category | Cases | |
|---|---|---|---|
| 1 | approximately accurate | 973 |
83.1%
|
| 2 | estimate is too high | 133 |
11.4%
|
| 3 | estimate is too low | 54 |
4.6%
|
| 7 | don't know | 11 |
0.9%
|
| Sysmiss | 611 |