| Value | Category | Cases | |
|---|---|---|---|
| -97 | Don't know | 43 |
6.2%
|
| 1 | 1 week | 67 |
9.6%
|
| 2 | 2 weeks | 93 |
13.4%
|
| 3 | 3 weeks | 143 |
20.6%
|
| 4 | 4 weeks | 349 |
50.2%
|
| a | Not applicable | 0 | |
| b | Don't know | 0 | |
| c | Refused to respond | 0 |