| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3014 |
92.1%
|
| 2 | 1 or 2 times | 131 |
4%
|
| 3 | 3 to 9 times | 75 |
2.3%
|
| 4 | 10 to 19 times | 36 |
1.1%
|
| 5 | 20 or more times | 18 |
0.5%
|
| Sysmiss | 232 |