| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than usual | 40 |
1.7%
|
| 2 | About the same | 70 |
3%
|
| 3 | Less than usual | 137 |
5.8%
|
| 4 | None | 0 |
0%
|
| 5 | missing | 0 |
0%
|
| 6 | Other | 0 |
0%
|
| 8 | dtk | 0 |
0%
|
| 9 | na | 2111 |
89.5%
|
| Sysmiss | 47 |