| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not useful | 75 |
1.4%
|
| 2 | Somewhat useful | 202 |
3.8%
|
| 3 | Useful | 2330 |
44%
|
| 4 | Very useful | 2678 |
50.6%
|
| 999 | Missing | 9 |
0.2%
|