| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1-2 days | 5 |
0.2%
|
| 2 | 3-5 days | 6 |
0.2%
|
| 3 | 5-7 days | 9 |
0.3%
|
| 4 | over 1 week | 21 |
0.7%
|
| 5 | 2-4 weeks | 235 |
7.5%
|
| 6 | 1-2 months | 521 |
16.7%
|
| 7 | 3 months or more | 337 |
10.8%
|
| s | 1995 |
63.8%
|