VCF0291 Thermometer Index: Major Party

QUESTION:
---------
Major party thermometer index

VALID_CODES:
------------
2.    Most Republican
.
50.   Neutral
.
99.   Most Democratic

MISSING_CODES:
--------------
998.  DK in VCF0218 or VCF0224
999.  NA
Inap. question not used

NOTES:
------
See thermometer question text and notes preceding VCF0201.
GENERAL NOTE:
Built from VCF0218 and VCF0224 as: (VCF0218-VCF0224 +100)/2.
Fractional results are rounded to the next highest integer.
Cases DK in either thermometer are coded DK; cases which are NA in one
thermometer are coded NA unless the other thermometer is DK (in which
cases this var is coded DK).

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

TYPE:
-----
Numeric  Dec 0

SOURCE_VARS:
------------
1978:  780155,780156  
1980:  800168,800169  
1982:  820138,820139  
1984:  840305,840306  
1986:  860146,860147  
1988:  880164,880165
1990:  900151,900152  
1992:  923317,923318  
1994:  940301,940302  
1996:  960292,960293 
1998:  980260,980261  
2000:  000369,000370
2004:  043049,043050