VCF0018b Post Language of Interview

QUESTION:
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1980: Was this interview conducted in English? (IF NO:) In What language 
was this interview conducted?
1984,1988,1992: Was this interview conducted entirely in English, or was 
it necessary to translate some (or all) questions into another language? 
What language?

VALID_CODES:
------------
0. IW conducted entirely in English
1. Some or all of IW translated to Spanish
3. Some or all of IW translated to French
4. Some or all of IW conducted in either Spanish or French
5. Some or all of IW translated to non-English language
     other than Spanish or French
7. Some or all of IW translated to non-English language
     but NA which language

MISSING_CODES:
--------------
9. NA if English or other language
Inap. no Post IW; abbrev. Post IW (1984)

NOTES:
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GENERAL NOTE:
For studies prior to 1978 it is not entirely certain whether any full 
or partial translations occurred, however none have been documented and 
all cases prior to 1978 are coded 0.  This was a question for the 
interviewer (except 1994).
1978 NOTE: 
Code 4 includes 1978 cases from code "Spanish, French".
1988 NOTE:
A language variable appeared for the Pre but not for the Post.
1992 NOTE:
For an unknown reason, this question was not answered by interviewers 
in 826 cases.
1994 NOTE: 
This was an admininstration (not interviewer) variable.

TYPE:
-----
Numeric  Dec 0

SOURCE_VARS:
------------
1978:  780645 
1980:  801192 
1982:  820776 
1984:  841117 
1986:  860768,860769
1990:  900695,900696
1992:  926251,926252
1994:  940047