| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Less than 1 month ago | 7 |
0.3%
|
| 2 | 2. Less than 3 month ago | 19 |
0.8%
|
| 3 | 3. Less than 4 month ago | 34 |
1.4%
|
| 4 | 4. Less than 1 year ago | 243 |
10%
|
| 5 | 5. More than 1 year ago | 2119 |
87.5%
|
| 9 | 1 |
0%
|
|
| Sysmiss | 11808 |