73% (1991)

60% (1952)

65% (1985)

70% (1975)

70% (2005)

78% (1995)

66% (1997)

67% (1962)

66% (1989)

78% (2007)

46% (1974)

64% (1978)

73% (1994)

64% (1983)

65% (2016)

53% (2003)

65% (1969)

72% (1976)

80% (1986)

59% (1983)