| Value | Category | Cases | |
|---|---|---|---|
| 1 | At the time of the sale | 12 |
75%
|
| 2 | Within one week | 1 |
6.3%
|
| 3 | Within one month | 3 |
18.8%
|
| 4 | One month or more | 0 |
0%
|
| Sysmiss | 3960 |