59% (1964)

52% (1964)

56% (1975)

44% (1973)

55% (2014)

70% (1969)

30% (1990)

49% (2013)

57% (1982)

50% (2008)

44% (1960)

49% (1972)

58% (1969)

64% (1949)

61% (1982)

42% (1979)

48% (1965)

50% (1967)

48% (2011)

62% (1977)