Party
1948
1951
1955
1959
1963
1968
1972
1976
1980
1984
1988
1991
1997
2001
2006
2011
(5)
52.0
O
(8)
52.4
O
(22)
27.8
(7)
38.5
X
(1)
19.8
(20)
24.8
(17)
38.7
O
(3)
11.7
(3)
33.6
*
(5)
9.9
*
(6)
10.3
**
(4)
55.7
X
(51)
54.1
O
(51)
46.9
O
(58)
86.7
O
(65)
70.4
O
(69)
74.1
O
(75)
77.7
O
(79)
64.8
O
(81)
63.2
O
(81)
61.0
O
(83)
65.0
O
(84)
75.3
O
(84)
66.6
O
(87)
60.1
O
(1)
61.0
*
(8)
35.7
*
(6)
10.3
**
(2)
37.7
(2)
28.3
(4)
19.5
(1)
36.3
(4)
16.6
(4)
16.9
(1)
27.6
***
(1)
32.5
***
(1)
50.6
*
(3)
8.4
(5)
5.6
(2)
7.9
(32)
13.2
(2)
11.3
(2)
10.3
**
(3)
2.7
(2)
5.4
(1)
2.3
(1)
1.5
(4)
4.1
(3)
20.2
(39)
27.0
X
(28)
10.3
**
(3)
12.6
(3)
1.0
(2)
13.2
X
(27)
24.5
X
(22)
27.9
X
(8)
29.2
X
(15)
41.9
X
(32)
38.5
(13)
41.1
(14)
37.6
X
(2)
39.3
(20)
38.4
X
(23)
46.6
X
(46)
37.1
X
(10)
26.6
(6)
27.1
(4)
27.0
(4)
38.2
(1)
6.0
(42)
9.4
(7)
27.5
(1)
26.2
(33)
12.3
(2)
17.8
(2)
16.0
(2)
24.4
(3)
26.2
(4)
22.8
(7)
30.1
***
(14)
25.3
(8)
19.0
(13)
34.2
(2)
12.3
(2)
14.3
(6)
15.7
(14)
12.0
(8)
20.0
(5)
18.0
(3)
30.7
(4)
46.1
(18)
39.5
X
(9)
48.6
X
(12)
33.1
(11)
20.4
(7)
23.2
(11)
36.8
(8)
34.6
(8)
37.9
(7)
30.1
(9)
27.6
X ***
(11)
32.5
***
(24)
39.3
(3)
27.2
(4)
27.6
X ***
(8)
32.5
***
(7)
41.4
(11)
31.8
1948
1951
1955
1959
1963
1968
1972
1976
1980
1984
1988
1991
1997
2001
2006
2011
(10)
50.5
(7)
40.8
(10)
24.0
(34)
15.0
(16)
3.6
(5)
13.3
(2)
23.2
(2)
17.8
(3)
19.7
(4)
22.0
(7)
14.7
(1)
14.1
(2)
9.9
Formal alliances
*
**
***
Main political parties
O
Form government (wins most seats)
X
Main opposition (seat x cand x vote)
( )
Candidates fielded