81% (1960)

70% (1988)

72% (2006)

70% (1986)

75% (1987)

64% (2014)

60% (2024)

61% (1987)

59% (1967)

71% (1964)

59% (1986)

59% (1985)

55% (1987)

69% (1987)

44% (1990)

64% (1990)

48% (1986)

77% (1959)

65% (1958)

57% (1987)