| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.5%
|
| -7 | Does not apply is a floor in a building (spontaneous) | 60 |
16.5%
|
| 0 | 179 |
49.2%
|
|
| 5 | 1 |
0.3%
|
|
| 10 | 4 |
1.1%
|
|
| 20 | 2 |
0.5%
|
|
| 25 | 3 |
0.8%
|
|
| 30 | 7 |
1.9%
|
|
| 40 | 1 |
0.3%
|
|
| 50 | 12 |
3.3%
|
|
| 70 | 1 |
0.3%
|
|
| 85 | 1 |
0.3%
|
|
| 90 | 1 |
0.3%
|
|
| 100 | 90 |
24.7%
|
|
| Sysmiss | 1 |