| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 7020 |
95.7%
|
| 2 | 1 or 2 times | 151 |
2.1%
|
| 3 | 3 to 9 times | 85 |
1.2%
|
| 4 | 10 to 19 times | 42 |
0.6%
|
| 5 | 20 or more times | 34 |
0.5%
|
| Sysmiss | 599 |