78% (2016)

75% (2023)

55% (2011)

60% (1996)

60% (1963)

72% (1962)

63% (1957)

53% (2013)

79% (1969)

75% (2022)

64% (1972)

40% (1966)

50% (1972)

68% (2009)

77% (1975)

58% (1969)

77% (1994)

73% (1994)

70% (2011)

72% (1978)