UH_OCCLYR_A3 is a 4-digit variable.
Codes are available here.
Occupation of job last year - 1992-2002
Unicon Corporation made the following notes about this variable:
* user must restrict sample to intended universe to differentiate between NIU=0 values and valid=0 values
- Those who worked any time during the last year.
|1992 – 2002||-||-||X||-||-||-||-||-||-||-||-||-|