| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2007 |
98%
|
| 2 | 1 or 2 times | 17 |
0.8%
|
| 3 | 3 to 9 times | 13 |
0.6%
|
| 4 | 10 to 19 times | 6 |
0.3%
|
| 5 | 20 or more times | 5 |
0.2%
|
| Sysmiss | 72 |