VCF0990 Relative Salience (Likes-Dislikes): Major Party House Cands

QUESTION:
---------
Relative salience of major party House candidates

MISSING_CODES:
--------------
999. MD (codes 6-9 in any of: VCF0980,VCF0981,
     VCF0984,VCF0985)
Inap. question not used

NOTES:
------
GENERAL NOTE:
Relative salience of major party House candidates is the sum of
'likes' and 'dislikes' about the Democratic House candidate MINUS the
sum of 'likes' and 'dislikes' about the Republican House candidate:
[VCF0980+VCF0981] - [VCF0984+VCF0985], which is the same as:
VCF0983-VCF0987.

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

TYPE:
-----
Numeric  Dec 0

SOURCE_VARS:
------------
1978:  780160,780161,780162,780163,780164,780165,
       780166,780167,780168,780169,780170,780171,
       780172,780173,780174,780175,780176,780177,
       780178,780179 
1980:  800892,800893,800894,800895,800896,800897,
       800898,800899,800900,800901,800902,800903,
       800904,800905,800906,800907,800908,800909,
       800910,800911  
1982:  820148,820149,820150,820151,820152,820153,
       820154,820155,820156,820157,820158,820159,
       820160,820161,820162,820163,820164,820165,
       820166,820167
1984:  840908,840909,840910,840911,840912,840913,
       840914,840915,840916,840917,840918,840919,
       840920,840921,840922,840923,840924,840925,
       840926,840927 
1986:  860184,860185,860186,860187,860188,860189,
       860190,860191,860192,860193,860194,860195,
       860196,860197,860198,860199,860200,860201,
       860202,860203  
1988:  880674,880675,880676,880677,880678,880679,
       880680,880681,880682,880683,880684,880685,
       880686,880687,880688,880689,880690,880691,
       880692,880693,880694,880695,880696,880697
1990:  900198,900199,900200,900201,900202,900203,
       900204,900205,900206,900206,900207,900208,
       900209,900210,900211,900212,900213,900214,
       900215,900216,900217,900218,900219,900220,
       900221 
1992:  925401,925402,925403,925404,925405,925406,
       925407,925408,925409,925410,925411,925412,
       925413,925414,925415,925416,925417,925418,
       925419,925420,925421,925422,925423,925424
1994:  940401,940402,940403,940404,940404,940405,
       940406,940407,940408,940409,940410,940411,
       940412,940413,940414,940415,940416,940417,
       940418,940419,940420,940421,940422,940423,
       940424
1996:  961044,961045,961046,961047,961048,961049,
       961050,961051,961052,961053,961054,961055,
       961056,961057,961058,961059,961060,961061,
       961062,961063,961064,961065,961066,961067
1998:  980275,980276,980277,980278,980279,980280,
       980281,980282,980283,980284,980285,980286,
       980287,980288,980289,980290,980291,980292,
       980293,980294,980295,980296,980297,980298 
2000:  001328,001329,001330,001331,001332,001333,
       001334,001335,001336,001337,001338,001339,
       001340,001341,001342,001343,001344,001345,
       001346,001347,001348,001349,001350,001351