| Value | Category | Cases | |
|---|---|---|---|
| 1 | Zero | 863 |
7%
|
| 2 | Once | 1381 |
11.3%
|
| 3 | Twice | 2011 |
16.4%
|
| 4 | Thrice | 1654 |
13.5%
|
| 5 | Four times | 1506 |
12.3%
|
| 6 | Five times | 992 |
8.1%
|
| 7 | More than five times | 3839 |
31.3%
|
| Sysmiss | 5 |