| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Less than 1 month ago | 25 |
0.3%
|
| 2 | 2. Less than 3 month ago | 48 |
0.5%
|
| 3 | 3. Less than 4 month ago | 304 |
3.1%
|
| 4 | 4. Less than 1 year ago | 1186 |
12.1%
|
| 5 | 5. More than 1 year ago | 8197 |
84%
|
| 9 | 2 |
0%
|
|
| Sysmiss | 4469 |