VCF0140a R Education 7-category

QUESTION:
---------
1952-1972:  How many grades of school did you finish?
1974 AND LATER:  What is highest grade of school or year of college
you have completed? Did you get a high school diploma or pass a high 
school equivalency test? 
1974,1976: Do you have a college degree? (IF YES:) What degree is that?
1978-1984: Do you have a college degree? (IF YES:) What is the highest 
degree that you have earned?
1986 AND LATER: What is the highest degree that you have earned?

VALID_CODES:
------------
1.  8 grades or less ('grade school')
2.  9-12 grades ('high school'), no diploma/equivalency
3.  12 grades, diploma or equivalency
4.  12 grades, diploma or equivalency plus non-academic
      training
5.  Some college, no degree; junior/community college
      level degree (AA degree)
6.  BA level degrees
7.  Advanced degrees incl. LLB

MISSING_CODES:
--------------
8.  DK
9.  NA; no Pre IW; short-form 'new' Cross Section (1992)
Inap. question not used

NOTES:
------
See notes VCF0140.

WEIGHT:
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VCF0009/VCF0009a

TYPE:
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Numeric  Dec 0

SOURCE_VARS:
------------
1952:  520131 
1956:  560181
1958:  580180 
1960:  600128 
1962:  620078 
1964:  640196 
1966:  660197 
1968:  680156 
1970:  700269(type 0)  
1972:  720300 
1974:  742423 
1976:  763389 
1978:  780513 
1980:  800436 
1982:  820542 
1984:  840438 
1986:  860602 
1988:  880422  
1990:  900557 
1992:  923908 
1994:  941209 
1996:  960610 
1998:  980577 
2000:  000913 
2002:  023131
2004:  043254