VCF0709 Ticket-splitting: President/House

QUESTION:
---------
Ticket splitting Presidential vs. Congressional vote

VALID_CODES:
------------
1.  Dem. Pres. - Dem. Congressional
2.  Dem. Pres. - Rep. Congressional
3.  Rep. Pres. - Dem. Congressional
4.  Rep. Pres. - Rep. Congressional

MISSING_CODES:
--------------
0.  DK/NA who voted for in presidential or congressional
    race; did not vote; refused to say if voted; DK/NA if
    voted; refused to say who voted for; "other"
    (independent/3rd party) vote; name given by R not on
    candidate list (1978-1988); Washington D.C.; no
    Post IW; voted, but not for president (1980 and
    later); voted, but not for House of Representatives   
    (1978 and later); forms III and IV (1972); special
    districts with no House race in 1978 (LA03, LA07,
    FL08, FL10); special districts with no House race in
    1980 (LA03, LA07); special districts with no House
    race in 1982 (LA05, LA07)
Inap. question not used

NOTES:
------
Derived from VCF0704 and VCF0707.

WEIGHT:
-------
VCF0009/VCF0009a

TYPE:
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Numeric  Dec 0

SOURCE_VARS:
------------
1952:  520178,520187 
1956:  560203,560212  
1960:  600201,600211 
1964:  640286,640290 
1968:  680316,680323 
1972:  720478,720485
1976:  763665,763673 
1980:  800993,800994,800997,800998 
1984:  840787,840788,840791,840792,840793
1988:  880763,880768
1992:  925609,925623 
1996:  961082,961089
2000:  001249,001262