share of vote format test

1964 +12
Labour 44
Libs 11
tory 43


1966 +14.5
Labour 48
libs 8.5
tory 42


1970 +4.5
labour 43
libs 7.5
tory 46


1974 (feb)
labour 37
libs 19
tory 38

1974 (october) +18
labour 39
libs 18
tory 44


1979 +7
labour 37
libs 14
tory 44


1983 +11
labour 28
libs 25
tory 42

1987 +10
labour 30
libs 22
tory 42

1992 +10
labour 34
libs 18
tory 42

1997 +30
labour 43
libs 17
tory 30

2000 +27
labour 41
libs 18
tory 32

2005 +22
labour 35
libs 22
tory 35