| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3138 |
97.5%
|
| 2 | 1 or 2 times | 33 |
1%
|
| 3 | 3 to 9 times | 25 |
0.8%
|
| 4 | 10 to 19 times | 9 |
0.3%
|
| 5 | 20 or more times | 12 |
0.4%
|
| Sysmiss | 45 |