Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 122 |
5.3%
|
1 | safe for long use, break unnecessary | 559 |
24.1%
|
2 | unsafe for long use, take a break | 1577 |
68.1%
|
98 | don't know | 58 |
2.5%
|
9999995 | missing:impute | 0 |
0%
|
Sysmiss | 467 |