| Value | Category | Cases | |
|---|---|---|---|
| 1 | The top structure is old and broken | 1805 |
50.6%
|
| 2 | It is full and overflowing | 639 |
17.9%
|
| 3 | We have to share with others | 88 |
2.5%
|
| 4 | It is too expensive to maintain | 544 |
15.3%
|
| 5 | Other | 491 |
13.8%
|
| Sysmiss | 12758 |