| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2111 |
98.7%
|
| 2 | 1 or 2 times | 20 |
0.9%
|
| 3 | 3 to 9 times | 6 |
0.3%
|
| 4 | 10 or more times | 2 |
0.1%
|
| Sysmiss | 61 |