| Value | Category | Cases | |
|---|---|---|---|
| 1 | One month | 13 |
2%
|
| 2 | Two months | 31 |
4.8%
|
| 3 | Three months | 32 |
4.9%
|
| 4 | Four months | 41 |
6.3%
|
| 5 | Five months | 34 |
5.3%
|
| 6 | Half a year | 78 |
12.1%
|
| 7 | More than half a year | 85 |
13.1%
|
| 8 | 1 year | 127 |
19.6%
|
| 9 | 2 years | 103 |
15.9%
|
| 10 | 3 years | 36 |
5.6%
|
| 11 | More than 3 years | 67 |
10.4%
|
| Sysmiss | 26829 |