| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 5 |
0.2%
|
| 0 | Less than 1 month | 0 |
0%
|
| 3 | 3 |
0.1%
|
|
| 4 | 5 |
0.2%
|
|
| 5 | 17 |
0.8%
|
|
| 6 | 1289 |
60.4%
|
|
| 7 | 183 |
8.6%
|
|
| 8 | 214 |
10%
|
|
| 9 | 93 |
4.4%
|
|
| 10 | 50 |
2.3%
|
|
| 11 | 1 |
0%
|
|
| 12 | 244 |
11.4%
|
|
| 13 | 1 |
0%
|
|
| 15 | 1 |
0%
|
|
| 18 | 15 |
0.7%
|
|
| 24 | 13 |
0.6%
|
|
| 36 | 1 |
0%
|