| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3379 |
97%
|
| 2 | 1 or 2 times | 63 |
1.8%
|
| 3 | 3 to 9 times | 24 |
0.7%
|
| 4 | 10 or more times | 18 |
0.5%
|
| Sysmiss | 147 |