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