VCF0410 Salience (Likes-Dislikes): Major Party Presidential Cands

QUESTION:
---------
Major party Presidential candidate salience

VALID_CODES:
------------
0.   Zero mentions
.
.
20.  Twenty mentions

MISSING_CODES:
--------------
99.  No Pre IW; form II (1972); abbrev. IW form 
     (1980: see VCF0015a)
Inap. question not used

NOTES:
------
GENERAL NOTE:
Major party presidential candidate salience is the sum of all 'likes'
and 'dislikes' about both the Democratic and Republican presidential
candidates:  [VCF0401+VCF0402 + VCF0405+VCF0406]
which is the same as:   VCF0404+VCF0408.

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

TYPE:
-----
Numeric  Dec 0

SOURCE_VARS:
------------
1952:  520027,520028,520029,520030
1956:  560019,560020,560021,560022
1960:  600024,600025,600026,600027
1964:  640025,640026,640027,640028
1968:  680032,680033,680034,680035
1972:  720039,720041,720043,720045
1976:  763112,763113,763114,763115,763116,763118,
       763119,763120,763121,763122,763124,763125,
       763126,763127,763128,763130,763131,763132,
       763133,763134
1980:  800078,800079,800080,800081,800082,800084,
       800085,800086,800087,800088,800102,800103,
       800104,800105,800106,800108,800109,800110,
       800111,800112
1984:  840082,840083,840084,840085,840086,840088,
       840089,840090,840091,840092,840094,840095,
       840096,840097,840098,840100,840101,840102,
       840103,840104
1988:  880104,880105,880106,880107,880108,880110,
       880111,880112,880113,880114,880116,880117,
       880118,880119,880120,880122,880123,880124,
       880125,880126
1992:  923110,923111,923112,923113,923114,923116,
       923117,923118,923119,923120,923122,923123,
       923124,923125,923126,923128,923129,923130,
       923131,923132
1996:  960206,960207,960208,960209,960210,960212,
       960213,960214,960215,960216,960218,960219,
       960220,960221,960222,960224,960225,960226,
       960227,960228
2000:  000306,000307,000308,000309,000310,000311,
       000312,000313,000314,000315,000316,000318,
       000319,000320,000321,000322,000324,000325,
       000326,000327,000328
2004:  043007,043009,043011,043013