| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 3 |
0.1%
|
| 0 | Less than 1 month | 0 |
0%
|
| 3 | 3 |
0.1%
|
|
| 4 | 5 |
0.2%
|
|
| 5 | 18 |
0.8%
|
|
| 6 | 1337 |
62.6%
|
|
| 7 | 219 |
10.3%
|
|
| 8 | 240 |
11.2%
|
|
| 9 | 82 |
3.8%
|
|
| 10 | 33 |
1.5%
|
|
| 11 | 1 |
0%
|
|
| 12 | 182 |
8.5%
|
|
| 18 | 8 |
0.4%
|
|
| 24 | 4 |
0.2%
|