Average vote shares for social democratic and rightwing populist parties 1940-2010
Social democrat vote
Populist radical right vote
35%
30
25
20
15
10
5
0
1940
1960
1980
2000
Social democrat vote
Populist radical right vote
35%
30
25
20
15
10
5
0
1940
1960
1980
2000