| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than usual | 33 |
1%
|
| 2 | About the same | 119 |
3.5%
|
| 3 | Less than usual | 147 |
4.4%
|
| 4 | None | 0 |
0%
|
| 5 | missing | 0 |
0%
|
| 6 | Other | 0 |
0%
|
| 8 | dtk | 0 |
0%
|
| 9 | na | 3063 |
91.1%
|
| Sysmiss | 1274 |