67% (2009)

66% (2002)

69% (2019)

71% (1995)

65% (2016)

72% (2023)

73% (1973)

52% (1961)

63% (1963)

63% (1959)

78% (1974)

67% (1966)

49% (1997)

52% (1959)

48% (1972)

39% (2014)

56% (1972)

40% (1969)

52% (1971)

50% (1958)