| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 3237 |
98.2%
|
| 2 | 1 or 2 times | 24 |
0.7%
|
| 3 | 3 to 9 times | 15 |
0.5%
|
| 4 | 10 to 19 times | 6 |
0.2%
|
| 5 | 20 or more times | 16 |
0.5%
|
| Sysmiss | 87 |