| Value | Category | Cases | |
|---|---|---|---|
| 1 | Prevent it from overcrowding | 18 |
4.6%
|
| 2 | Prevent it from falling | 336 |
85.7%
|
| 3 | For aesthetics | 3 |
0.8%
|
| 4 | None of the above | 1 |
0.3%
|
| 5 | Don’t know | 34 |
8.7%
|