63% (1973)

57% (1970)

58% (1975)

69% (1986)

42% (1993)

62% (1965)

57% (2017)

75% (1989)

71% (1982)

52% (2018)

62% (1981)

66% (1973)

77% (1976)

76% (1946)

71% (2002)

57% (2016)

70% (2003)

70% (1967)

70% (1977)

71% (1974)