| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 34297 |
62.4%
|
| 2 | 1 or 2 times | 12316 |
22.4%
|
| 3 | 3 to 9 times | 5346 |
9.7%
|
| 4 | 10 or more times | 3018 |
5.5%
|
| Sysmiss | 2004 |