| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1715 |
94.8%
|
| 2 | 1 or 2 times | 31 |
1.7%
|
| 3 | 3 to 9 times | 32 |
1.8%
|
| 4 | 10 to 19 times | 24 |
1.3%
|
| 5 | 20 or more times | 8 |
0.4%
|
| Sysmiss | 98 |