| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3441 |
97.9%
|
| 2 | 1 or 2 times | 33 |
0.9%
|
| 3 | 3 to 9 times | 21 |
0.6%
|
| 4 | 10 to 19 times | 10 |
0.3%
|
| 5 | 20 or more times | 9 |
0.3%
|
| Sysmiss | 117 |