| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than usual | 5 |
0.2%
|
| 2 | About the same | 143 |
5.9%
|
| 3 | Less than usual | 203 |
8.4%
|
| 4 | None | 0 |
0%
|
| 5 | missing | 1 |
0%
|
| 6 | Other | 0 |
0%
|
| 8 | dtk | 0 |
0%
|
| 9 | na | 2077 |
85.5%
|
| Sysmiss | 329 |