| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 0 |
0%
|
| 0 | Less than 1 month | 1 |
0%
|
| 3 | 5 |
0.2%
|
|
| 4 | 9 |
0.4%
|
|
| 5 | 33 |
1.5%
|
|
| 6 | 1554 |
72.8%
|
|
| 7 | 251 |
11.8%
|
|
| 8 | 138 |
6.5%
|
|
| 9 | 61 |
2.9%
|
|
| 10 | 7 |
0.3%
|
|
| 12 | 71 |
3.3%
|
|
| 18 | 1 |
0%
|
|
| 24 | 4 |
0.2%
|