| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2001 |
98.2%
|
| 2 | 1 or 2 times | 20 |
1%
|
| 3 | 3 to 9 times | 10 |
0.5%
|
| 4 | 10 or more times | 7 |
0.3%
|
| Sysmiss | 83 |