| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1925 |
96.3%
|
| 2 | 1 or 2 times | 28 |
1.4%
|
| 3 | 3 to 9 times | 26 |
1.3%
|
| 4 | 10 to 19 times | 11 |
0.6%
|
| 5 | 20 or more times | 8 |
0.4%
|
| Sysmiss | 124 |