| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year ago | 21 |
37.5%
|
| 2 | 1-2 years ago | 14 |
25%
|
| 3 | 3-5 years ago | 7 |
12.5%
|
| 4 | 6-10 years ago | 1 |
1.8%
|
| 5 | Earlier than 10 years ago | 3 |
5.4%
|
| 6 | This building is new and was never renovated | 10 |
17.9%
|
| 11 | .A | 5 | |
| Sysmiss | 38 |