61% (2013)

75% (2006)

71% (1988)

63% (1984)

69% (1987)

59% (2005)

66% (1987)

53% (2008)

64% (1995)

70% (1998)

71% (1983)

58% (2003)

62% (2018)

67% (2018)

66% (1991)

80% (1959)

69% (1982)

69% (1981)

82% (1952)

62% (1998)