59% (1985)

51% (1986)

64% (2016)

50% (1975)

60% (1954)

60% (2007)

59% (1959)

53% (1999)

62% (1980)

60% (1994)

80% (1998)

41% (1982)

63% (1987)

49% (1976)

60% (1972)

60% (1975)

63% (1991)

37% (1979)

56% (2016)

65% (1963)