| Value | Category | 
|---|---|
| 0 | None | 
| 1 | 1 to 14 hours (except ca1971) | 
| 2 | 15 to 29 hours (except de1970, ca1971) | 
| 3 | 30 to 39 hours (except de1970) | 
| 4 | 40-48 hours (except il1972-1995, ca1971, pt1991-2011) | 
| 5 | 49 hours or more (except il1972 and ca1971) | 
| 7 | Inconsistent or irregular work schedule | 
| 8 | Unknown | 
| 9 | NIU (not in universe) | 
| var_concept.title | Vocabulary | 
|---|---|
| Work Variables -- PERSON | IPUMS |