| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3855 |
92.3%
|
| 2 | 1 or 2 times | 171 |
4.1%
|
| 3 | 3 to 9 times | 80 |
1.9%
|
| 4 | 10 to 19 times | 30 |
0.7%
|
| 5 | 20 or more times | 41 |
1%
|
| Sysmiss | 197 |