| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1898 |
92.5%
|
| 2 | 1 or 2 times | 88 |
4.3%
|
| 3 | 3 to 9 times | 35 |
1.7%
|
| 4 | 10 or more times | 32 |
1.6%
|
| Sysmiss | 40 |