70% (1979)

46% (1990)

77% (1988)

53% (1976)

76% (1980)

76% (1985)

61% (1964)

68% (1969)

68% (2003)

73% (1985)

57% (1971)

75% (1981)

80% (1996)

70% (1972)

64% (2020)

63% (1956)

64% (1973)

58% (1989)

61% (1980)

70% (1969)